The minimum wavelength of X-rays produced by an electron acc... | Physics | SolveeIt | Solveeit

Today, August 19

Question

The minimum wavelength of X-rays produced by an electron accelerated through a potential difference of V volts is proportional to:

A

$V^2$

B

${\sqrt{V}}$

C

$\frac{1}{V}$

D

$\frac{1}{\sqrt{V}}$

Answer

$\frac{1}{V}$

Explanation

Solution

The correct option is (C): $\frac{1}{V}$
By the law of photo electric effect,
$\frac{hc}{\lambda}=eV\,or\,\lambda=\frac{hc}{eV}\propto \frac{1}{V}$