For x-rays coming from a Coolidge tube, consider the following statements:
A. product of cutoff wavelength and accelerating voltage is a constant
B. is smaller than
A and B both are true
A is true but B is false
A is false but B is true
A and B both are false
Here
So,
so, (A) is correct
Here
(B) is false.
Hence correct option is (B)