X-ray from a Coolidge tube is incident on a thin aluminium foil. The intensity of the X-ray transmitted by the foil is found to be I0. The heating current is increased so as to increase the temperature of the filament. The intensity of the X-ray transmitted by the foil will be

Increasing the operating voltage increases the energy of x-rays, while increasing the current increases the intensity. Thus, if we increase the current, the intensity will increase.

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