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A photocell employs photoelectric effect to convert (a) change in the frequency of light into a change in the electric current (b) Change in the frequency of light into a change in electric voltage (c) Change in the intensity of illumination into a change in photoelectric current (d) Change in the intensity of illumination into a change in the work function of the photo cathode |
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Answer» (c) Change in the intensity of illumination into a change in photoelectric current It indicates that threshold frequency is greater than that of ultraviolet light. As X-rays have greater frequency than uv rays, so they can cause photoelectric effect |
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