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which is correct about photo electrons 1. electrons are emitted from metal surface when light falls on it 2. the KE of photo elecrons is more for light of longer wavelength in comparison to that due to shorter wavelenght 3. none Ans is 3 Why not 1.

which is correct about photo electrons
1. electrons are emitted from metal surface when light falls on it
2. the KE of photo elecrons is more for light of longer wavelength in comparison to that due to shorter wavelenght
3. none

Ans is 3 Why not 1.

Grade:12

2 Answers

Sher Mohammad IIT Delhi
askIITians Faculty 174 Points
9 years ago
Electrons are emitted form metal surface only if the wavelength is more than the critical wavelength, so none of the above is answer.


sher mohammad
b.tech, iit delhi


Shivam
39 Points
9 years ago
thanx

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