Light of frequency 1.5 times the threshold frequency is incident on a photo-sensitive material. if the frequency is halved and intensity is doubled,the photo current becomes?

 there would be no photoelectric current. coz , if u half the incident frequency , den it wud be lesser than the threshold frequency .

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Hi Monishdutta!

There won’t be any photocurrent. When the frequency is halved, it becomes less than the threshold frequency. So, no photoelectrons are emitted.

Cheers!!

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heelo

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