The work function of a metallic surface is 5.01 eV. The photoelectrons – McqOptions

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1.	The work function of a metallic surface is 5.01 eV. The photoelectrons are emitted when light of wavelength 2000 \[\overset{\text{o}}{\mathop{\text{A}}}\,\] falls on it. The potential difference applied to stop! The fastest photoelectrons is \[\left[ h=4.14\times {{10}^{-15}}eVs \right]\]
A.	1.2 V
B.	2.24 V
C.	3.6 V
D.	4.8 V
Answer» B. 2.24 V

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