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###### Syed Shoaib posted an Question
October 27, 2021 • 17:04 pm 30 points
• IIT JAM
• Physics (PH)

# A beam of light has three wavelengths 4144 4,4972 a and 62164 with a total intensity of 3.6x10 wn equally distributed amongst the three wavelengths. the beam fa

A beam of light has three wavelengths 4144 4,4972 A and 62164 with a total intensity of 3.6x10 Wn equally distributed amongst the three wavelengths. The beam falls normally on an area 1.Ocm of a clean metallic surface of work function 2.3eV. Assume that there is no loss of light by reflection and that each energetically capable photon ejects one electron. The number of photo electrons liberated in per second

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• ##### Anshum Sharma

see this attachment... check if this is correct or not

• ##### Syed shoaib

and here here wavelength's energy is less than the given work function so photo current is not possible

• ##### Syed shoaib

no sir answer is also wrong and I am getting confused

I will check this again and then tell you... wait

Ok sir thank you

• ##### Anshum Sharma

work function is the minimum energy required to eject electrons W = hv⁰.. i.e I have taken this

Yes I know but energy of photon is not the work function...

• ##### Anshum Sharma

Here is the detailed solution

how you have taken work function as energy of photon??🙄🙄

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