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In a photoelectric experiment, the colle...

In a photoelectric experiment, the collector plate is at 2.0V with respect to the emitter plate made of copper `(phi)=4.5eV)`. The emitter is illuminated by a source of monochromatic light of wavelength 2000 `Å`nm.

A

The miniumum kinetic energy of the photoelectrons reaching the collector is 0.

B

the maximum kinetic energy of the photoelectrons reacing the collector is 3.7eV.

C

if the polarity of the battery is reversed then answer to part A will be0.

D

if the polarity of the battery is reversed then answer to part B will be 1.7eV.

Text Solution

Verified by Experts

The correct Answer is:
B
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