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Question

Penetrating power of X-rays does not depend on ________.

A
potential difference
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B
wavelength
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C
energy
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D
current in the filament
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Solution

The correct option is C current in the filament
Penetrating power of X-rays does not depend on current in the filament as
When the current through the filament increases, the number of emitted electrons also increases. Hence the intensity of Xray increases but no effect on penetrating power.

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