A photon of wavelength 6630 Å is inciden...

A photon of wavelength `6630 Å` is incident on a totally reflecting surface . The momentum delivered by the photon is equal to

A

`6.63xx10^(-27)` kg-m/sec

B

`12xx10^(-27)` kg-m/sec

C

`1xx10^(-27)` kg-m/sec

D

`2xx10^(-26)` kg-m/sec

Verified by Experts

The correct Answer is:

C

`lambda = (h)/(P)`
`rArr P = (h)/(lambda)rArr (6.6xx10^(-34))/(6630xx10^(-10))=9.95xx10^(-28)` kg - m/sec
`= 1xx10^(-27)` kg - m/sec

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