A) will be monochromatic
B) will have all possible wavelengths less than a certain longest wavelength
C) will have all possible wavelengths greater than a certain shortest wavelength
D) will have all wavelengths between the longest and the shortest wavelength
Correct Answer: C
Solution :
Wavelength of X-rays depends upon the accelerating potential (V) and kinetic energy of incident electron \[({{E}_{x}})\]. So, by changing either V or \[{{E}_{x}},\] X-rays of all possible wavelengths greater than a certain shortest wavelength can be obtained.
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