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Question

A wave is associated with matter when it is:
  1. stationary
  2. in motion with a velocity
  3. in motion with velocity of light
  4. in motion with velocity greater than that of light

A
in motion with a velocity
B
in motion with velocity of light
C
in motion with velocity greater than that of light
D
stationary
Solution
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The relationship between de Broglie wavelength (λ) and the momentum (p) of a photon is given by:
λ=hp.
So a wave is associated with matter when it is in motion i.e. it is in a motion with a velocity.

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