Q. How will the diffraction pattern of single slit change when yellow light us replaced by blue light? The fringe will be
A) Wider
B) Narrower
C) Brighter
D) Fainter
Explanation
(b) Fringe width $\propto$ wavelength of light.
Therefore fringe will become narrower.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.