Question

For wave Intensity 1W/m^2 and wavelength 1micrometre calculate number of photons

Answer 1

2mA

4.0 mA

Answer :

B

Solution :

0.4

A (3) 4.0 mA (4)

A <br> Number of photon / second

N=IA/hcΔ

<br> Number of photo electron emitted/second

=N/100

<br> Photo electric current

=N/100×e

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