AIPMT PRELIMS2008Physics-Modern Physics
AIPMT PRELIMS 2008 Physics Photoelectric Effect MCQ Question
Type: MCQ-conceptual-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
Infrared region
B
X⁻ray region
C
Ultraviolet region
D
Visible region
Correct Answer
Option C
Detailed Explanation
The energy of the incident photon must be greater than the work function plus the stopping potential. This corresponds to the ultraviolet region.
Found an issue with this question?