physics questions
DIRECTIONS : Questions based on Physics.
11. What is the main component of biogas and natural gas?
  A.  Ethane
  B.  Methane
  C.  Propane
  D.  Butane
12. Who of the following recognized that large quantity of energy is released as a results of the fusion of hydrogen nuclei to form deuterium?
  A. Enrico Fermi
  B. Glenn Seaborg
  C. Hans Bethe
  D. Werner Heisenberg

13. The phenomenon of total internal reflection is observed in which one of the following?
  A.  Glowing tube light
  B.  Lightpassingthroughlens
  C.  Sparkling diamond
  D.  Twinkling star.
14. Through which one among the following materials does sound travel slowest?
  A.  Air
  B.  Glass
  C.  Water
  D.  Wood
15. Which one of the following is printed on a commonly used fluorescent tube light?
  A.  220 K
  B.  273 K
  C.  65000 K
  D.  9000 K
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