BSNL Broadband Modem type 2 with wifi and TA (Terminal Adapter)

BSNL broadband modems may be with Wifi or without Wifi.

	Modem Type
Nomenclature	ADSL Basic	ADSL WiFi-2	ADSL-WiFi-TA	VDSL WiFi
Short Nomenclature	Type-B1/B2	Type-W1/W2	Type-WT	Type-VD
Modem Sale Price (one time Charges)*	Rs.1100	Rs.1800	Rs.2250	Rs.2950
Monthly Rental	Rs.50	Rs.80	Rs.100	Rs.130
Monthly Rental after 24 months	Rs. 25	Rs. 40	Rs. 50	Rs. 65

The above table from BSNL site shows the cost of various modems

Features	Type-B1	Type-B2	Type-W2	Type-WT	Type-VD
USB Port	1	1	1	1	1
Ethernet Ports	1	4	4	4	4
WiFi Enable	No	No	Yes	Yes	Yes
VoIP Enable	No	No	No	Yes	No

And also the features

Now the modem I bought for 2250 the Type-WT is special in that apart from the 4 LAN ports (provided by Type-B2) and the Wifi (provided by Type-W2) this one has VoIP support too.

The VoIP (Voice over Internet Protocol) allows people to make phone calls via the internet (at cheaper rates!!)
But BSNL, as of now, doesn't provide VoIP service. Only private companies are now giving this. And it requires additional equipment (a phone that can connect to internet) too.

That's all. If you want to be the proud owner of cutting edge technology, follow me and buy this one.

INOI 2011 Solutions

[Update on Jan 17, 2013: Some readers are reporting that the second solution is wrong. I cannot verify the same, but to be safe discretion is advised.]

Here are my solutions for the two INOI 2011 questions... (Indian National Olympiad in Informatics conducted by IARCS Indian Association for Research in Computing Science for Google's search :P)

The first question was about how many right angled triangles are possible with the given set of points and with sides parallel to x and y axes.

Arrays required: a 2*N array (xy[2][N])to store the coordinates. Two 10^4 long arrays (X[10000] and Y[10000] to store the number of times an x-coordinate and y-coordinate appears.
Input: Go into the loop. Get the coordinate and store it in the first array. Add 1 to X[x-coordinate], 1 to Y[y-coordinate]
The trick: Now, for every given point just multiply (X[x]-1) and (Y[y]-1)
This works because if you think of the points really as it is plotted in a graph, you'll see that for one point as the vertex with the adjacent sides perpendicular, there are as many triangles possible as the product of the remaining points left horizontal to it, and remaining points left vertical to it.
Add this for all points and do that %10000

The second question involving dynamic programming needs a solution to be constructed from one of the problems already discussed in online contest archive.
We store the marks in the array marks[N]
Now the best score at marks[0] is the same.
from marks[1] onwards, the best score is the maximum of (marks[1] alone),(best[i-1]+marks[1]),(best[i-1] dropping marks[i])
In the last case, when we drop marks[i], we must add one mark which we previously dropped to get the best mark.
Now, the trick in this is to store a best negative mark value for every i-1 so that if i is negative too, we can find dropping which is better. (where, by best negative, I mean the one closest to zero.. Because the one farthest from zero needs to be dropped.)
so we compare the best negative and marks[i] (obviously when marks[i] is negative) and keeps the one closest to zero, drops the other...

we must keep the count of K that is left. And we must also remember to restore K to maximum when we can best [i-1] is the same as marks[i] and they're both negative (or zero).

Both of the questions were particularly easy, if you thought like me. All the best for your results.

CBSE Class XII Date Sheet 2011 Class XII Time Table 2011 Board Examinations

The Date Sheet of CBSE Class XII 2011 was released today, on 7th, January,2011.
The main subjects are as follows:

All exams start at 10:30 AM. Subject codes in parenthesis.

Here's the copy of the original file CBSE uploaded (Click here):

Science (Biology) Stream
March 1, Tuesday: Physics (042)
March 7, Monday: Chemistry (043)
March 11, Friday: English Core (301)
March 14, Monday: Biology (044)
March 22, Tuesday: Mathematics (041)

Science (Computer) Stream 
March 1, Tuesday: Physics (042)
March 7, Monday: Chemistry (043)
March 11, Friday: English Core (301) March 22, Tuesday: Mathematics (041)
March 30, Wednesday: Computer Science (083)

Commerce Stream
March 3, Thursday: Business Studies (054)
March 9, Wednesday: Accountancy (055)
March 11, Friday: English Core (301)
March 16, Wednesday: Economics (030)
March 30, Wednesday: Informatics Practices (065)

Intercoastal Myalgia or Intercostal Myalgia (Pain in the Ribs)

I had a pain in my chest just at the branching of my right bronchi in my right lung whenever I ran for long and then quick. I always thought it had something to do with my chest. But finally I found the reason. It was intercoastal myalgia.
Intercostal muscles are the muscles in between your ribs, which help in the expansion of rib cage in the dorso ventral axis during inspiration. When there's a pain in any of these muscles due to some reason or other it manifests as severe chest pain...

Thankfully I had it on my right side,,
Had it been on the left side I'd have died of anxiety thinking it was a heart attack

KVPY Class XII SB(+2)/SX 2010 Questions and Answers

The KVPY 2010 question papers (SA, SB/SX) are provided below.

•	SA Part A
•	SA Part B
•	SB/SX

The KVPY 2010 answer keys (SA, SB/SX) are provided below.

•	SA, SB, SX
•	SA Part B

Here's my attempt at answering KVPY Question Paper of Stream SB/SX conducted on October 31, 2010. The answers may or may not be right. Verify the logic on your own.
PART-I (Answer any three sections. One mark for right answers, -0.25 for wrong answers)
MATHEMATICS
PHYSICS
CHEMISTRY
BIOLOGY
PART-II (Answer any two sections. Two marks for right answers, -0.5 for wrong answers)
MATHEMATICS
PHYSICS
CHEMISTRY


110 A solution containing 8.0 g of nicotine in 92 g of water freezes 0.925 degrees below the normal freezing point of water. If the molal freezing point depression constant K_f = 1.85°C mol^-1 then the molar mass of nicotine is
A. 16
B. 80
C. 320
D. 160
The depression is half the freezing point depression constant. So, there must be 0.5 moles. Now the unit given in the question seems to be wrong. The unit for molal freezing point depression must be °C kg mol^-1. So, keeping that in mind, the molality of the solution is 0.5 mole per kg. That is, in 100g, there is 0.05 moles which is 8 g. 16 g in 0.1 moles and 160 g for 1 mole.

BIOLOGY
111: A host cell has intracellular bacterial symbionts. If the growth rate of the bacterial symbiont is always 10% higher than that of the host cell, after 10 generations of the host cell the density of bacteria in host cells will increase
A. by 10%
B. two-fold
C. ten-fold
D. hundred-fold
This is intracellular symbiont. Imagine there is one symbiont in one cell. So, when that host cell becomes 10, the total number of symbionts becomes 11, that is 1.1 per cell. (in one generation) Similarly when it becomes 100 in the next generation, the symbionts become 121. (1.2 per cell) Going on, in the 10th generation, it'll reach around 2.5 per cell which I rounded as two-fold.

112 In a diploid organism, there are three different alleles for a particular gene. Of these three alleles one is recessive and the other two alleles exhibit co-dominance. how many phenotypes are possible with this set of alleles?
A. 3
B. 6
C. 4
D. 2
This is nothing other than how the blood groups are. There is three different alleles, A, B and i. i is recessive, A and B exhibit co-dominance. And we have: AB, A, B and O phenotypes

CBSE HIQ 2010 Results, CBSE Heritage India Quiz 2010 results published

The results of the preliminary examination of CBSE Heritage India Quiz 2010 which was conducted on the 28th of August, 2010 has been released.

Here's the official link to the official page


Results Of Preliminary Written Test [.doc file 106 KB]

CBSE HIQ, 2010 solved CBSE Heritage India Quiz Questions & Answers

The CBSE Heritage India Quiz, 2010 (HIQ, 2010) was conducted on 28th Aug, 2010.
There were 100 questions to be answered in an OMR sheet in 90 minutes with two marks for every right answer and one negative mark for each wrong answer.

Questions & Answers

1. The tallest statue of Hanuman is in
1. Maharashtra
2. Punjab
3. Tamil Nadu
4. Andhra Pradesh
   A) Andhra Pradesh (in Paritala 135 feet)
2. Which Indian city manufactured balls for the World Cup Football?
1. Ludhiana
2. Mumbai 
3. Jalandhar
4. Chennai
   A) Jalandhar
3. Name the oldest mountain range of India
1. Himalayas
2. Nilgiris
3. Aravallis
4. Vindhyas
   A) Aravallis
4. In which year was Teachers' Day first celebrated in India?
1. 1965
2. 1947
3. 1962
4. 1975
   A) 1962
5.  Which of these sanctuaries is in Karnataka
1. Gir Sanctuary
2. Kaziranga Sanctuary
3. Dandeli Wildlife Sanctuary
4. Tadoba National Park
   A) Dandeli Wildlife Sanctuary (Tadoba is in Maharashtra, Gir - Gujarat, Kaziranga - Assam)
6. On which riverbank is Goa located?
1. Ganga
2. Mandovi
3. Gomati
4. Sabarmati
   A) Mandovi (Gomati is a tributary of Ganga, Sabarmati is in Gujarat)
7. Name the Indian Tennis player who has turned Hollywood filmmaker?
1. Leander Paes
2. Mahesh Bhupathi
3. Vijay Amritraj 
4. Ashok Amritraj
   A) Ashok Amritraj (brother of Vijay Amritaraj, both of them Tennis players. But Vijay Amritraj has only acted in movies)
8. The Great Indian Bustard, an endangered bird, is found in 
1. The Thar Desert
2. The Deccan Plateau
3. The Sunderbans
4. The Sambhar Lake
   A) The Thar Desert (and adjoining states in India, Pakistan)
9. Which state was the first to electrify all its villages?
1. Haryana
2. Kerala
3. Maharashtra
4. Tamil Nadu
   A) (not Maharashtra, not Kerala)
10. 'Prem Rog' a movie directed by Raj Kapoor is based on which social cause?
1. Dowry
2. Widow-remarriage
3. Untouchability
4. Casteism
   A) Widow-remarriage (man in love with widow of higher status)
11. Which of these foreign rulers were the last to leave the country?
1. British
2. Dutch
3. French
4. Portugese
   A) Portugese (left Goa only in 1961)
12. Which is India's second highest civilian honour?
1. Ashoka Chakra
2. Padma Bhushan
3. Padma Shri
4. Padma Vibhushan
   A) Padma Vibhushan (followed by Padma Bhushan, Padma Shri, Ashok Chakra isn't civilian)
13. Which monument was built by the Mughal emperor Akbar?
1. Qutub Minar
2. Red Fort
3. Charminar
4. Fatehpur Sikhri
   A) Fatehpur Sikhri (in 1571)
14. The stories depicted in the Ajanta and Ellora caves are from the
1. Ramayana
2. Mahabharata
3. Jataka
4. Panchatantra
   A) Jataka???? (stories)
15. Hamida Begum was the mother of
1. Akbar
2. Humayun
3. Babar
4. Aurangazeb
   A) Akbar (Humayun's wife)
16. One of the oldest and holiest Indian cities lies on the banks of the river Shipra. What is its name?
1. Ujjain
2. Gandhinagar
3. Chandipur
4. Mysore
   A) Ujjain
17. Name the river whose main tributary is the Tungabhadra
1. Krishna
2. Godavari
3. Kaveri
4. Narmada
   A) Krishna
18. Which city is called the religious capital of Maharashtra?
1. Mumbai
2. Pune
3. Nasik
4. Shirdi
   A) Nasik (Pune is the cultural capital)
19. What was Kanyakumari, the southernmost tip of the Indian peninsula, known as during the British rule?
1. Cape Coromandel
2. Cape Comorin
3. Cape Victoria
4. Cape Connaught
   A) Cape Comorin
20. In which state is India's first marine national park located?
1. Gujarat
2. Kerala
3. Goa
4. Tamil Nadu
   A) Gujarat (acknowledged in 1982)
21. Which is the Indian state whose ruler was the only royalty who did not attend the Delhi Durbar for King George V in 1911?
1. Udaipur
2. Hyderabad
3. Mysore
4. Gwalior
   A) Udaipur (Maharana Fateh Singh)
22. In which monument would you find the grave of Sultan Mohammad Adil Shah?
1. Lodhi Tomb, Delhi
2. Gol Gumbaz, Bijapur
3. Charminar, Hyderabad
4. Bibi ka Maqbara, Aurangabad
   A) Gol Gumbaz
23. Which Indian state gets its name from the Burmese word for "people with pierced ears"?
1. Mizoram
2. Tripura
3. Nagaland
4. Manipur
   A) Nagaland (Naka)
24. Which noted Indian personality's father was one of the three main (Indian) contractors who built Connaught Place? The other two were Sardar Dharam Singh and Rai Bahadur Narain Singh.
1. Amrita Shergil
2. Vir Sanghvi
3. Khuswant Singh
4. Swaraj Paul
   A) Khuswant Singh (his father Sir Sobha Singh)
25. Which artist, of royal descent, became so famous that his Palace was "completed to open a post office" due to the countless painting requests that arrived "every day from everywhere"?
1. Nandalal Bose
2. Raja Ravi Varma
3. Sobha Singh
4. Rabindranath Tagore
   A) Raja Ravi Varma (it is!)
26. Which landmark film deals with the story of the King of Kumarpur and his two quarrelling wives Dilbahar and Navbahar?
1. Light of Asia
2. Raja Harishchandra
3. Alam Ara
4. Prithvi Vallabha
   A) Alam Ara
27. During his incarceration at which prison from 1942 to 1946 did Jawaharlal Nehru write the 'Discovery of India'?
    A) Ahmednagar (actually in five months April to September 1944)
28. Indian state capital was designed by the noted German architect Otto Konigsberger in 1946?
    A) Bhubaneswar
29. Which tradition of the Republic Day parade was discontinued in 2009 owing to security concerns after they caused a scare at the previous year's parade?
    A) Elephants
30. In 2000, P. Gopichand became the 2nd player to win the All-England title in badminton, 20 years earlier, who had become the first?
    A) Prakash Padukone
31. Which Maratha leader was known as the Maratha Machiavelli by the Europeans in the 18th-19th centuries?
    A) Nana Phadnavis
32. The subject of a classic poem by Ramdhari Singh Dinkar, which apsara was the wife of the King Pururavas?
    A) Urvashi (the poem - Urvashi)
33. Which daughter of Fatma Begum, from Surat, became a famous film star, and also India's first woman film director?
    A) Zubeida (the first woman film director is Fatma Begum, though Zubeida is her daughter)
34. Who is acknowledged to be the first Indian to play at the Wimbledon tennis championships?
    A) S Nihal Singh (played at Wimbledon in 1908. Though B Nehru entered the competition in 1905, he gave a walkover to his opponent)
35. the famous film start seen in this still from one of his films
    
    
    
    
    
    
    A) Dara Singh
    
36. Which town has the distinction of being the coldest inhabited town in India, and is the second coldest inhabited town in the world?
    A) Drass
37. Who was the youngest ever luge (men's category) Olympian (at 16 years old) and the sole Indian representative at the 1998 Winter Olympics in Nagano, Japan?
    A) Shiva Keshavan
38. Which English word, meaning "Any large, overpowering, destructive force" has origin in the falsehood that Hindu devotees of Krishna were lunatic fanatics who threw themselves under the wheels of chariots in order to attain salvation?
    A) Juggernaut (Jaggannath)
39. Which of these English words does not have a Hindi or Urdu origin?
    A) Banana
40. Identify the Indian architect who has worked with Le Corbusier and Louis Kahn, and has been on the selection committee for the Pritzker Prize, the Indira Gandhi National Centre for Arts, and the Aga Khan Award. He was also the first founder Director of School of Architecture, Ahmedabad.
    A) B V Doshi
41. Who is the fictional private investigator that has starred in a series of Bengali novels, short stories and movies, from the series Feluda created by the famous Indian Bengali film director and writer Satyajit Ray?
    A) Pradosh Chandra Mitter
42. Which is the second most commonly spoken language in India, after Hindi?
    A) Bengali (83 million speakers followed by Telugu - 74, Marathi - 72, Tamil - 61)
43. Which is the largest freshwater island in South Asia?
    A) Majuli, Assam (in Brahmaputra)
44. Which is the island on which Mumbai and Thane lie, thus the most populous island in India and the 14th most populous in the world?
    A) Salsette Island
45. Identify this Jain religious cenre:
    
    
    
    
    
    
    
    A) Shatrunjaya Hill
46. This miniature painting is an illustration from which early Mughal manuscript, commissioned by Akbar and directed by Mir Sayyed Ali and Abd as Samad?
    
    
    
    
    
    
    
    
    A) Tutinama
47. In which city would you currently find this priceless sculpture from the trove of Indian heritage?
    
    
    
    
    
    
    
    
    
    A) Patna
48. Born in Bilaspur, in 1927, which Indian player holds the record with Udham Singh, for winning the greatest number of gold medals in field hockey at the Olympic Games?
    A) Leslie Claudius
49. Identify this painting, often called "India's Mona Lisa."
    
    
    
    
    
    
    
    
    
    
    A) Bani Thani
50. Which Arjuna Awardee and Padma Shri, who won a gold medal in the 1970 Asian Games, died recently in New Delhi?
    A) Chandgi Ram
51. From which city did Doordarshan first start its broadcast on 15 September 1959?
    A) Delhi
52. Which mythological figure is also known as Halyudha, Adiguru and Anmkarsana, which means child transferred from the womb?
    A) Balarama
53. Identify this tennis legend
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    1. Ramanathan Krishnan
    2. Ramesh Krishnan
    3. Ghaus Mohammad
    4. Zeeshan Ali
       A) Ramesh Krishnan (not Ramanathan Krishnan)
54. Which of the following newspaper was established by Mahatma Gandhi?
    A) Indian Opinion (in South Africa)
55. Pick the wrong match.
1. Chilka Lake :: Orissa
2. Kolleru Lake :: Karnataka
3. Dal Lake :: Kashmir
4. Sambhar Lake :: Rajasthan
   A) Kolleru Lake is in Andhra Pradesh
56. Aryabhata was India's first satellite. Which was the second one?
    A) Bhaskara-1 (1979)
57. Where was the first Indian Institute of Technology setup?
    A) Kharagpur (1951)
58. What is the odd one out?
1. Silambam
2. Gatka
3. Thang-fa
4. Bando
   A) Thang-fa (is a meaningless word. Others martial arts: Silambam-  Tamil Nadu, Gatka - Punjab, Bando - near Myanmar)
59. Which of the following is the motto of the Indian Navy
1. 'शं नो वरुणः'- "May Vauna be peaceful to us"
2. We protect
3. On the Sea We Are Glorious
4. Touching the Sky with Glory
   A) शं नो वरुणः
60. What is the meaning of 'Koh-i-Noor'?
    A) Mountain of Light
61. The 'Sanskriti Express' train is a tribute from the Indian Railways to which Indian Nobel laureate?
    A) Rabindranath Tagore
62. Which was Indian television's first soap opera?
    A) Hum Log
63. According to tradition, which style of painting is said to be originated in the Ramayana, when King Janaka commissioned artists to do paintings for the marriage of his daughter, Sita, to Lord Rama?
    A) Madhubani
64. Which was India's first fully indigenous passenger car?
1. Maruti Suzuki
2. Hyundai Santro
3. Honda Accent
4. Tata Indica
   A) Tata Indica (of course Suzuki, Honda, and Hyundai are foreign)
65. Which of the following sports/games originated in India?
    A) Chess
66. Which of the following is not a 'Classical Language' of India?
    A) Hindi (Tamil, Sanskrit, Kannada, Telugu are the 4)
67. 'Losar' meaning the 'New Year' is celebrated in which part of India?
    A) Sikkim (Tibet)
68. Which contemporary Indian writer was born as 'Nilanjana Sudeshna'?
    A) Jhumpa Lahiri
69. Who was the director of Bollywood blockbuster '3 Idiots'?
    A) Rajkumar Hirani
70. India celebrates the 'National Science Day' on 28th February every year in honor of which scientist?
    A) C.V. Raman for the Raman Effect
71. Which Indian freedom fighter was born as 'Manikarnika' in the city of Varanasi?
    A) Rani Laxmibai
72. Pick the odd one out.
1. Tapti
2. Mahi
3. Narmada
4. Kaveri
   A) Kaveri is the only East flowing one.
73. Who amongst them was a professor of Computer Science at Stanford University, who was also an advisor of Google and Paypal?
    A) Rajeev Motwani
74. Who was the first "crorepati" in the T.V. show Kaun Banega Crorepati?
    A) Harshavardhan Navathe
75. The movie Slumdog Millionaire is an adaptation of which novel?
    A) Q & A
76. What special about the movie 'My Dear Kuttichathan' released in 1984?
    A) The first 3D movie released in India
77. Which of the following cities doesn't have a 'Jantar Mantar'?
    A) Udaipur
78. Which state capital in India is also known as the 'Scotland of the East'?
    A) Shillong
79. Which form of art did Maharani Gayatri Devi help revive?
    A) Blue Pottery
80. Which athelete is known as Payolli Express?
    A) P.T. Usha
81. Tirupati, the famous temple town is in which state?
    A) Andhra Pradesh
82. If I am good at penning 'Thrilling Tales' without 'Too Much Trouble' as I walk you on the 'Roads to Mussoorie' to a 'Stairway To Nowhere' and 'The India I love' then who am I?
    A) Ruskin Bond
83. Used in India before our independence, the term derives from the Latin prefix meaning "in the place of" and a French word, meaning king. What word?
    A) Viceroy ('Vice' - "in the place of", 'roi' - king)
84. The letter "M" stands for which city in the name of the great singer MS Subbalakshmi?
    A) Madurai
    
85. Which Vice Chancellor of the Banaras Hindu University represented India at UNESCO from 1948-49 and was later Ambassador of India to the Soviet Union, from 1949 to 1952?
    A) Dr. S. Radhakrishnan (He was vice president from 1952-1962. The first presidential election took place only in 1952 :P)
86. Calicocotton is a cloth named after which Indian port?
    A) Calicut
87. What was the name of Dhirutarastra's daughter in the Mahabharath?
    A) Dushala
88. Rabindranath Tagore composed the National Anthem of India and which other country?
    A) Bangladesh (Amar Shonar Bangla)
89. city is known as the Diamond capital of India?
    A) Surat
90. Who established Aligarh Muslim University?
    A) Sir Syed Ahmaed Khan
91. Which famous sufi saint's shrine is in Fatehpur Sikri?
    A) Khwaja Saleem Chisti
92. If you land at the Choudhari Charan Singh airport which city are you in?
    A) Lucknow
93. Who laid the foundation of the Maurya Dynasty?
    A) Chandragupta Maurya
94. Who defeated the Marathas in the third battle of Panipat?
    A) Ahmad Shah Abdali
95. Who among the following was the signatory to the Poona Pact in the Yerwada Jail near Pune when Mahatma Gandhi was sick?
    A) B. R. Ambedkar
96. Where do you find the historic gate Rumi Darwaza, named after the great Turkish poet Rumi in India?
    A) Lucknow
97. Who wrote "Kanan Kusum"?
    A) Jaishankar Prasad
98. Which one of these schools of the performing arts was founded in 1930?
1. Kerala Kalamandalam
2. Sangeet Natak Academy
3. Margi
4. School of Drama
   A) Kerala Kalamandalam (Sangeet Natak Academy, New Delhi - 1952, Margi theater Trivandrum - 1970, School of Drama, New Delhi - 1959)
99. The greeting 'Jai Hind' was started by which famous person?
1. Pandit Jawaharlal Nehru
2. MK Gandhi
3. Subhash Chandra Bose
4. Bal Gangadhar Tilak
   A) SC Bose (though Chempakaraman Pillai is said to have introduced it)
100. 'Bandi Nata' is the folk play of which Indian state?
1. Orissa
2. Maharashtra
3. Gujarat
4. Madhya Pradesh
   A) Orissa

to be continued....

RESULTS of this quiz
The schools which qualified in this preliminary test