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In an `X` - rays tube , the intensity of the emitted `X` - rays beam is increased byA. Increasing the filament currentB. Decreasing the filament currentC. Increasing the target potentialD. Decreasing the target potential |
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Answer» Correct Answer - A By changing the filament current with the help of rheostat , thermionic emission intensity of `X - rays` can be changed. |
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