NEET Practice Questions

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A photosensitive surface emits photoelectrons when red light falls on it. Will the surface emit photoelectrons when blue light is incident on it ?

(1 mark)

 

Give reason.

Explanation:

For writing Yes, 1/2 Mark

For writing reason, 1/2 mark

Reason:

vblue > vred

[alternatively:

Energy of blue light photon is greater than energy of red light photon]

 

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