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The anode voltage of photocell is kept fixed .The wavelength \lambda of the light falling on the cathode is gradually changed .The plate current I of the photocell varies as follows:

 

 

Option: 1


Option: 2


Option: 3


Option: 4


Answers (1)

best_answer

The current start flowing only when the wavelength is below a cutoff value, and as we reduce the wavelength current will increase. 

Posted by

himanshu.meshram

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