To decrease the cut-off wavelength of continuous X-rays by 25%, the po – McqOptions

MCQOPTIONS

1.	To decrease the cut-off wavelength of continuous X-rays by 25%, the potential difference across X-ray tube
A.	must be increased by \[\frac{100}{3}%\]
B.	must be decreased by \[\frac{100}{3}%\]
C.	must increased by 25%
D.	must decreased by 25%.
Answer» B. must be decreased by \[\frac{100}{3}%\]

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