Question

The maximum frequency of X-rays produced by electrons accelerated through V volt is proportional to

• A. V
• B. $\frac{1}{V}$
• C. $V^2$
• D. $\frac{1}{V^2}$

Answer 1

The correct option is A V

If electrons are accelerated to a velocity v by a potential difference V and then allowed to collide with a metal target, the maximum frequency of the X-rays emitted is given by the equation:
$m{v}^2=eV=hf$
So, X ray frequency $f=eV/h$
This shows that the maximum frequency is directly proportional to the accelerating voltage.