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After ejection of photo electron if again shined light radiation greater than given metal`s work function. What happens? Explain

After ejection of photo electron if again shined light radiation greater than given metal`s work function. What happens? Explain

Grade:12

1 Answers

Umakant biswal
5349 Points
7 years ago
@ sathvika 
after ejection of photo electron , if u will shine a light greater than its work function and threshold freq , then anathor electron will comes out , beacuse metal have a number of free electron which is moving randomly . 
and remember – the shined light energy should be received by quanta , or packets of energy . 
and acc to einstain equation , if at a time , u have puted some light of some high freq and energy than the threshold freq . then the energy will be used in two way . 
one is to eject the photo electron from the surface and the left energy will be used to accelerate the particle / electron to high energy level . that is called  as K.E (MAX ) 
SO, 
hv = hv0 + k.e ( max ) 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..

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