Selected MCQ

Current Question
Which wave travels fastest?
  • A. Sound in air
  • B. Light in vacuum
  • C. Water wave
  • D. Seismic wave
Correct Answer: B
Explanation:
Light travels fastest in vacuum.
Related Question 1
Which wave travels in vacuum?
  • A. Sound
  • B. Water
  • C. Light
  • D. Seismic
Correct Answer: C
Explanation:
Light does not require medium.
Related Question 2
Which wave shows polarization?
  • A. Sound
  • B. Light
  • C. Water
  • D. Seismic
Correct Answer: B
Explanation:
Only transverse waves polarize.
Related Question 3
Which wave shows diffraction?
  • A. Light
  • B. Sound
  • C. Water
  • D. All
Correct Answer: D
Explanation:
All waves diffract.
Related Question 4
Which wave shows interference?
  • A. Light
  • B. Sound
  • C. Water
  • D. All
Correct Answer: D
Explanation:
All waves can interfere.
Related Question 5
The Compton wavelength is inversely proportional to:
  • A. Charge
  • B. Mass
  • C. Velocity
  • D. Frequency
Correct Answer: B
Explanation:
(\lambda = h/mc), inversely dependent on mass.