Modern Physics Ques 4
- The X-ray beam coming from an X-ray tube will be
(1985, $2 \mathrm{M})$
(a) monochromatic
(b) having all wavelengths smaller than a certain maximum wavelength
(c) having all wavelengths larger than a certain minimum wavelength
(d) having all wavelengths lying between a minimum and a maximum wavelength
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Answer:
Correct Answer: 4.( c )