If momentum of alpha,beta and gamma waves is equal then which out of these will have maximum wavelength?

Options

A. Alpha rays
B. Beta rays
C. Gamma rays
D. None of three ,all have same wavelength

Answer

D

Explanation

Let momentum of `alpha` and `beta` particle be P then
`P=(hf)/(c )`
For photon `lambda=(h)/(p)` (de-Broglie wavelength)
If momentum of both is equal then de-Broglie wavelength also will be equal `alpha` and `Beta` particle have equal de-Broglie wavelength and photon (`gamma`-rays) can be considered having equal wavelength.