A homogeneous ball (mass=m) of ideal black material at rest is illuminated with a radiation having a set of photons (wavelength`=lamda`), each with the same momentum and the same energy. The rate at whoch photons fall on the ball is n. the linear acceleration of the ball is

Options

A. `(mlamda)/(nh)`
B. `(nh)/(mlamda)`
C. `(nh)/((2pi)(mlamda))`
D. `(2lamda)/(nh)`

Answer

B

Explanation

Momentum imparted per unit time`=np`
`impliesF=(nh)/(lamda)`
Acceleration `=(nh)/(mlamda)`