3631: If water contracts on freezing, which of the following would happen?
(a) Icebergs will completely float on the surface of water
(b) Ice would become more dense
(c) Lakes would freeze from top to bottom
(d) Rocks will crack due to freezing or internal water
3632: India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?
(a) It can use thorium in place of uranium for power generation
(b) It can attain a global role in satellite navigation
(c) It can drastically improve the efficiency of its fission reactors in power generation
(d) It can build fusion reactors for power generation
3633: The latitudes that pass through Sikkim also pass through
(a) Himachal Pradesh
(b) Punjab
(c) Jammu & Kashmir
(d) Rajasthan
3634: Match List-I with List-II and select the correct answer using the code given below the lists :
List I
(Finding/Invention/ Calculation)
A. Time Taken by the Earth to orbit the Sun
B. Calculation of the value of (pi)
C. Invention of the digit zero
D. The game of snakes and ladders
List II
(Ancient Indian Scholar)
1. Aryabhatta
2. Bhaskaracharya
3. Budhayana
4. Gyandev
(A) 2 4 1 3
(B) 1 3 2 4
(C) 1 4 2 3
(D) 2 3 1 4
3635: Which one of the following is NOT an astronomical object?
(a) Pulsar
(b) Brittle Star
(c) Black hole
(d) Quasar