Question

Radiation pressure on any surface :

• A. is dependent on wavelength of the light used
• B. is dependent on nature of surface and intensity of light used
• C. is dependent on frequency and nature of surface
• D. depends on the nature of source from which light is coming and on nature of surface on which it is falling.

Answer 1

The correct option is B is dependent on nature of surface and intensity of light used

Radiation pressure is given by $P_R=\frac{(1+\alpha )I}{c}$
where $\alpha$ is the coefficient of reflection of the surface.
For completely reflecting surface $\alpha =1$
For completely absorbing surface $\alpha =0$
So, radiation pressure depends on the nature of surface on which the light is falling but independent of wavelength of light falling.