NEET2013Physics-Wave Optics
NEET 2013 Physics Diffraction MCQ Question
Type: MCQ-conceptual-Medium-Class 12
A parallel beam of light of wavelength λ is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of the incident beam. At the second minimum of the diffraction pattern, the phase difference between the rays coming from the two edges of slit is:
A
2π
B
3π
C
4π
D
πλ
Correct Answer
Option C
Detailed Explanation
The phase difference at the second minimum is 4π because each minimum corresponds to a phase difference of 2π.
Found an issue with this question?