Which one of the following is true in photoelectric emissionA. Photoelectric current is directly proportiona to the amplitude of light of given frequencyB. Photoelectric current is directly proportional to the intesity of light of a given frequency above threshold valueC. Above the threshold frequency the maximum K.E. of photoelectronsis inversely proportional to the frequency of incident lightD. The threshold frequency depends upon the wavelength of incident light

Which one of the following is true in photoelectric emissionA. Photoel

1.	Which one of the following is true in photoelectric emissionA. Photoelectric current is directly proportiona to the amplitude of light of given frequencyB. Photoelectric current is directly proportional to the intesity of light of a given frequency above threshold valueC. Above the threshold frequency the maximum K.E. of photoelectronsis inversely proportional to the frequency of incident lightD. The threshold frequency depends upon the wavelength of incident light
Answer» Correct Answer - B For threshold frequency, `hv_(0) = phi rArr v_(0) = (phi)/(h)` `rArr KE_("max") = hv - phi = h(v-v_(0))` `I_("saturation") prop n` where `I = nhv`

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