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In photoelectric effect the work functio...

In photoelectric effect the work function of a metal is 3.5 eV. The emitted electrons can be stopped by applying a potential of –1.2 V. Then

A

the energy of the incident photons is `4.7eV`

B

the energy of the incident photons is `2.3eV`

C

if higher frequency photons be used , the photoelectric current will rise

D

when the energy of photons is `3.5eV` , the photoelectric current will be maximum

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A
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