If h is Plank's constant. Find the momentum of a photon of wavelength 0.01Å.

Options

A. `10^(-2)`
B. h
C. `10^(2)h`
D. `10^(12)h`

Answer

D

Explanation

(d) : Momentum of photon, `p=(E)/(c)=(hv)/(c)`
where E is the energy of a photon and c is the velocity of light.
`:.p=(hc)/(clamda)" "[becausev=(c)/(lamda)]`
`=(h)/(lamda)=(h)/(0.01xx10^(-10))=10^(12)h`