Physics General Knowledge Questions and Answers

5. Sound travels in the form of
  A.  Stationary waves
  B.  Longitudinal waves
  C.  Transverse waves
  D.  None of the above
Answer
Ans: B
Longitudinal waves
6. In television broadcast, the picture signals are transmitted by
  A.  Phase modulation
  B.  Angle modulation
  C.  Amplitude modulation
  D.  Frequency modulation
Answer
Ans: D
Frequency modulation
7. A dynamo which is said to generate electricity actually acts as a
  A.  Source of electric charge
  B.  Converter of energy
  C.  Source of ions
  D.  Source of electrons
Answer
Ans: B
Converter of energy
8. Radioactivity was discovered by
  A.  Bohr
  B.  Madame Curie
  C.  Henry Becquerel
  D.  Rutherford
Answer
Ans: C
Henry Becquerel
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