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Electrons from n = 2 to n= 1 in hydrogen...

Electrons from n = 2 to n= 1 in hydrogen atom is made to fall on a metal surface with work function 1.2ev. The maximum velocity of photo electrons emitted is nearly equal to

A

4400 Å

B

1250 Å

C

1650 Å

D

1850 Å

Text Solution

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The correct Answer is:
B
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