Questions
When a beam of accelerated electrons hits a target, a continuous X-ray spectrum is emitted from the target. Which of the following wavelengths is absent in X-ray spectrum, if the X-ray tube is operating at 40,000 volts?
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a
0.25 Ao
b
0.5 Ao
c
1.5 Ao
d
1.0 Ao
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Correct option is A
λmin=1237540,000=0.30Ao.Hence wavelentgh less than 0.30Ao is not possible.Similar Questions
The energy of a photon of characteristic x-ray from a Coolidge tube comes from
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