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A:Relation between energy of photon (E )...

A:Relation between energy of photon (E ) and momentum (P) is `P=(E )/(c )`
R:Photon behaves as particle.

A

Both assertion and reason are true and the reason is correct explanation of the assertion.

B

Both assertion and reason are true but reason is not correct explanation of the assertion

C

Assertion is true but the reason is false

D

Both assertion and reason are false.

Text Solution

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The correct Answer is:
A
Both assertion and reason are true and the reason is correct explanation of the assertion.
Momentum of photon
`p=(h)/(lambda)=(hf)/(c )`…..(1)`[lambda=(c )/(f)]`
Photon is bundle of energy which act as particle Energy of particle is E=nhf
If n=1 and f=`(c )/(lambda)`
`E=(hc)/(lambda)` ......(2)
From result (1) and (2)
`P=(E )/(c )` or `(hf)/(c )`
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