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Light of intensity l is incident perpend...

Light of intensity l is incident perpendicularly on a perfectly reflecting plate of area A kept in a gravity free space. If the photons strike the plate symmetrically and initially the springs were at natural lengths, what is the maximum compression

A

`(IA)/(Kc)`

B

`(2Ia)/(3Kc)`

C

`(3Ia)/(Kc)`

D

`(4Ia)/(3Kc)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(2IA)/(c )=F` and `(K_(eq))` parallel `=3K`
`triangleX=(2F)/(3K)=(4IA)/(2Kc)`
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