Light of frequency 1.5 times the threshold frequency is incident on a photosensitive material. What will be the photoelectric current, if the frequency is halved and intensity is doubled? [NEET 2020]
Text Solution
Verified by ExpertsThe correct answer is:
C
Initially, frequency of light,
But when the frequency of incident light is halved, then 
. Thus, it becomes less than the threshold frequency. In that case, no photoelectric effect takes place.
Hence, photoelectric current becomes zero.
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