Statement-I: The graph of X-ray frequency f versus atomic number Z of a heavy element is a straight line. Statement-II: The graph of √f versus Z is a straight line. Choose the correct option.
Options

Question

Statement-I: The graph of X-ray frequency f versus atomic number Z of a heavy element is a straight line. Statement-II: The graph of √f versus Z is a straight line. Choose the correct option.

G1 Physics · Accepted Answer

Moseley's law is √f=a(Z-b). Therefore √f versus Z is linear, while f versus Z is not linear. Hence Statement-I is false and Statement-II is true.