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Perfectly Inelastic Collision
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A radiation o...
Question

A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface


A

E/C

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B

2E/C

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C

EC

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D

E/C2

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Solution

The correct option is B

2E/C


The change in momentum on a perfectly reflecting surface = 2p

where p = momentum of radiation

As P = Ec ∴ Momentum transferred = 2Ec


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