Photon and electron are given same energy `(10^(-20) J)`. Wavelength associated with photon and electron are `lambda_(ph)` and `lambda_(el)` then correct statement will be

Options

A. `lambda_(ph) lt lambda_(el)`
B. `lambda_(ph) gt lambda_(el)`
C. `lambda_(ph) = lambda_(el)`
D. `(lambda_(el))/(lambda_(ph))=c`

Answer

2

Explanation

For photon , `lambda_(ph) = (hc)/( E)`
For electron `(1)/(2) mu^(2) = E rArr u = sqrt((2E)/(m))`
`lambda_(e)=(h)/("mu")=(h)/(sqrt(2mE))`
Putting the values, `lambda_(ph)gtlambda_(e).`