Question

A pulse of light of duration 100 ns is absorbed completely by a small object initially at rest. Power of the pulse is 30and the speed of light is . The final momentum of the object is:

A

B

C

D

Hard
JEE Advanced

Solution

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Correct option is B)

Sol
Watt, 
Incident energy
By debroglie wavelength,
and Energy of photon is
From above two equations,  

Momentum kg ms

So, the answer is option (B).

Video Explanation

Solution To Question ID 31869
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Solve any question of Dual Nature of Radiation And Matter with:-

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