If the potential difference between the anode and cathode of the `X` - ray tube is increases

Options

A. The peaks at `R` and `S` would move to shorter wavelength
B. The peaks at `R` and `S` would remain at the same wavelength
C. The cut off wavelength at `P` would decrease
D. `(b)` and `( c)` both are correct

Answer

D

Explanation

Peaks on the graph represent characteristic `X` - ray spectrum. Every peak has a certain wavelength , which depends upon the transition of electrons inside the atom of the target. While `lambda_(min)` depends upon the accelerating voltage (As . `lambda_(min) prop 1//V`).