Photoelectric EffectHard
Question
An X-ray tube is operated at 66 kV. Then, in the continuous spectrum of the emitted X-rays :
Options
A.wavelengths 0.01 nm and 0.02 nm will both be present
B.wavelengths 0.01 nm and 0.02 nm will both be absent
C.wavelengths 0.01 nm will be present but wavelength 0.02 nm will be absent
D.wavelength 0.01 nm will be absent but wavelength 0.02 nm will be present
Solution
λmin = 
= (Ao)
Since 0.01 nm is less than λmin , it will be absent but 0.02 nm and longer wavelength will be present
= (Ao)Since 0.01 nm is less than λmin , it will be absent but 0.02 nm and longer wavelength will be present
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