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TOPIC :PARTICLE NATURE OF LIGHT
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QUESTION
Q1) If the momentum of a particle is doubled, then its de-Broglie wavelength will become.. [ AFMC 1997]
a)unchanged
b) four times
c)two times
d)half times
SOLUTION
de-Broglie wave length λ=h / p
If p is doubled then λ will be halved.
Answer: (d)