NEET levelSingle correct optionDifficulty 1 of 3as007
When the frequency of the incident light is below the threshold frequency of a metal, increasing the intensity of the light
Adoes not cause any photoelectron emission
Bcauses emission with low kinetic energy
Ccauses emission after a time delay
Dcauses emission with a smaller number of electrons
Answer: A
Each electron absorbs one photon. If a single photon has energy h nu less than the work function, no electron escapes, however many photons arrive. So intensity cannot compensate for low frequency.