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If m is the mass of an electron and c th...

If m is the mass of an electron and c the speed of light, the ratio of the wavelength of a photon of energy E to that of the electron of the same energy is

A

`csqrt((2m)/E)`

B

`sqrt((2m)/E)`

C

`sqrt((2m)/(cE))`

D

`sqrt(m/E)`

Text Solution

Verified by Experts

The correct Answer is:
A
`E=(hc)/(lamda_(ph) )and lamda_e=h/(sqrt(2mE))`
`(lamda_(ph))/(lamda_e)=(hc)/Exx(sqrt(2mE))/h=csqrt((2m)/E)`
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