Question
Physics Question on Youngs double slit experiment
In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths, λ1 =12000 Å and λ2= 10000 Å. At what minimum distance from the common central bright fringe on the screen 2 m from the slit will a bright fringe from one interference patter coincide with a bright fringe from the other?
A
8 mm
B
6 mm
C
4 mm
D
3 mm
Answer
6 mm
Explanation
Solution
The correct option is (B): 6 mm