Physics General Knowledge Questions and Answers

5. The rear view of a mirror vehicles is
  A.  Plane
  B.  Triconcave
  C.  Concave
  D.  Convex
Answer
Ans: D
Convex
6. Who invented the laser?
  A.  Seymour Cray
  B.  Charles H. Townes
  C.  Sir Frank Whittle
  D.  Fred Morrisson
Answer
Ans: B
Charles H. Townes
7. Rocket operates (works) on the principle of
  A.  Energy conservation
  B.  Momentum conservation
  C.  Avogadro's concept
  D.  Bernoulli's theorem
Answer
Ans: B
Momentum conservation
8. The antiparticle of the electron is called as
  A.  Meson
  B.  Neutrino
  C.  Antineutrino
  D.  Positron
Answer
Ans: D
Positron
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