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The work function of a metallic surface ...

The work function of a metallic surface is 5.01 eV. The photoelectrons are emitted when light of wavelength `2000A` falls on it. The potential difference applied to stop the fastes photoelectrons is `[h=4.14xx10^(-15)eVs]`

A

1.2 volts

B

2.24 volts

C

3.6 volts

D

4.8 volts

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The correct Answer is:
A
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