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Find the velocity of photoelectrons libe...

Find the velocity of photoelectrons liberated by electromagnetic radiation of wavelength `lambda=18.0nm` from stationary `He^(+)` ions in the ground state.

A

`2.3xx10^(6)ms^(-1)`

B

`1.3xx10^(6)ms^(-1)`

C

`2.3xx10^(5)ms^(-1)`

D

`1.3xx10^(3)ms^(-1)`

Text Solution

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The correct Answer is:
A
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