An X-rays tube is operated at `66kV`. Then , in the continous spectrum of the emitted X-rays :

Options

A. wavelengths `0.01`nm and `0.02`nm will both be absent
B. wavelengths `0.01 nm` and `0.02 nm` will both be absent
C. wavelengths `0.01 nm` will be present but wavelengths `0.02 nm` will be absent
D. wavelengths `0.01nm` will be absent but wavelength `0.02 nm` will be present

Answer

D

Explanation

`lambda_(min)=(hc)/E=(hc)/(eV)=1240/(66xx10^(3))=0.0188nm``