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From hydrogen gas discharge tube, light ...

From hydrogen gas discharge tube, light is emitted. Emitted light is used to emit electron from sodium metal of work function `phi= 1.82 eV`
If the fastest photoelectron has KE of 0.73 eV, the wavelength of incident radiation on the sodium metal is :

A

`5627.63 "Å"`

B

`4862.74"Å"`

C

`3384"Å"`

D

`9872 "Å"`

Text Solution

Verified by Experts

The correct Answer is:
b
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