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Question

An X-ray tube is operated at 1.24millionvolt. The shortest wavelength of the produced photon will be:


A

10-2nm

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B

10-3nm

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C

10-4nm

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D

10-1nm

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Solution

The correct option is B

10-3nm


The explanation for the correct option:

The minimum wavelength of the photon will correspond to the maximum energy due to accelerating by eV volts in the tube.

Let, the shortest wavelength of the photon be λmin

Plank's constant, h

The velocity of light, c

λmin=hc/eV=1240/1.24×106=10-3nm

Hence, option B is correct.


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