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Question: When the photons of energy hu fall on a photosensitive metallic surface of work function \(h v _ {...

When the photons of energy hu fall on a photosensitive metallic surface of work function hv0h v _ { 0 } electrons are emitted from the surface. The most energetic electron coming out of the surface have kinetic energy equal to:

A

hu

B

hv0h v _ { 0 }

C

hv+hv0h v + h v _ { 0 }

D

Answer

Explanation

Solution

: Maximum kinetic energy of emitted photoelectrons

=hv−hv0= h v - h v _ { 0 }