Q. In Young’s double slit experiment, a third slit is made in between the double slits. Then
A) Intensity of fringes totally disappears
B) Only bright light is observed on the screen
C) Fringes of unequal width are formed
D) Contrast between bright and dark fringes is reduced
Explanation
(d) If a third slit is made between the double slits, then contrast between bright and dark fringes is reduced.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.