Question
Question: Angular fringe width obtained during YDSE in air is 0.20. If whole apparatus is emerged in water(m =...
Angular fringe width obtained during YDSE in air is 0.20. If whole apparatus is emerged in water(m = 4/3), then angular width of fringes will become –
A
0.110
B
0.300
C
0.220
D
0.150
Answer
0.150
Explanation
Solution
Fringe width in water = μwaterFringe6muwidth6muin6muair
= 4/30.20 = 0.150