Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The wavelength (λ) of monochromatic light coming from some light sources is listed below. How many of these sources will be able to exhibit photoelectric effect if incident upon surface of Li metal (work function, 
).
Light Source | |
A | 100 |
B | 200 |
C | 300 |
D | 400 |
E | 500 |
F | 600 |
G | 700 |
H | 800 |
I | 900 |
Text Solution
Verified by ExpertsThe correct answer is:
D
For PEE, 
. So, 5 sources ( 
) will exhibit photoelectric effect.
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