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Electromagnetic radiation of wavelength `3000 Å` is incident on an isolated platinum surface of work- function 6.30 eV. Due to the radiation, the

A

sphere becomes positively charged

B

sphere becomes negatively charged

C

sphere remains neutral

D

maximum kinetic energy of the ejected photoelectrons would be 2.03 eV

Text Solution

Verified by Experts

The correct Answer is:
C
`E = (12375)/(3000) = 4.125 eV`
Since , EltW no photoelectric effect will be
observed.
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