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The kinetic energy of an electron is E w...

The kinetic energy of an electron is E when the incident wavelength is `lamda` To increase ti KE of the electron to 2E, the incident wavelength must be

A

`2 lambda`

B

` lambda//2`

C

` ( hc lambda ) // ( E lambda +hc ) `

D

` ( hc lambda ) //( E lambda+ hc)`

Text Solution

Verified by Experts

The correct Answer is:
C
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