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A collimated beam of light of flux densi...

A collimated beam of light of flux density `30kWm^(-2)` is incident normally on `100mm^(2)` completely absorbing screen. If P is the pressure exerted on the screen and `trianglep` is the momentum tranferred to the screen during a 1000 s interval, then

A

`P = 10^(-3)Nm^(-2)`

B

`P = 10^(-4)Nm^(-2)`

C

`Deltap = 10^(-4)kgms^(-1)`

D

`Deltap = 10^(-5)kgms^(-1)`

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