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Questions  

Radiation pressure on any surface

a
is independent of wavelength of the light used
b
is dependent on nature of surface and wavelength of the light used
c
is independent of frequency and nature of surface both
d
depends on the nature of source from which light is coming but independent of the nature of surface on which it is falling

detailed solution

Correct option is B

The radiation pressure P=FA=(2hλ)NA=2Ic if the surface is perfectly reflecting. For a perfectly absorbing surface it is Ic.

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A photon and an electron possess same de-Broglie wavelength. Given that c is speed of light and v, the speed of electrons, which of the following relations is correct ? Here Ee = K.E. of electron, Eph = K.E. of photon, pe= momentum of electron, pph = momentum of photon


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