The number of electrons emitted by a surface exposed to light is directly proportional to, (Provided frequency of incident light is greater than the threshold frequency of metal)
A
Frequency of light
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B
Work function
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C
Threshold wavelength
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D
Intensity of light
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Solution
The correct option is C Intensity of light More is the Intensity of light, more is the number of photons falling on the surface of metal and more will be the number of electrons emitted.