X raysEasy
Question
The potential difference applied to an X-rays tube is increased. As a result, in theemitted radiation
Options
A.the intensity increases
B.the minimum wavelength increases
C.the intensity remains unchanged
D.the minimum wavelength decreases
Solution
λm(in 
) 
With increase in V, λm will decrease. With decrease in λm energy of emitted photons will increase. And hence intensity will increase even if number of photons emitted per second are constant. Because intensity is basically energy per unit area per unit time.
) With increase in V, λm will decrease. With decrease in λm energy of emitted photons will increase. And hence intensity will increase even if number of photons emitted per second are constant. Because intensity is basically energy per unit area per unit time.
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