AIPMT MAIN2008Physics-Photoelectric Effect
AIPMT MAIN 2008 Physics Work Function and Stopping Potential MCQ Question
Type: MCQ-numerical-Medium-Class 12
The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the
A
X⁻ray region
B
Ultraviolet region
C
Visible region
D
Infrared region
Correct Answer
Option B
Detailed Explanation
The energy of the incident photon is 11.2 eV, which corresponds to a wavelength in the ultraviolet region.
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