16. In Young's double slit experiment the slits are separated by 0.5 mm and screen is placed 1.5 m away. The distance between the central bright fringe and the fifth bright fringe is 1.5 cm. What is l?
Suggested solution:
The distance between the central and the 5th bright fringe = 1.5cm
Therefore b =
0.3 = 3 x 10-3 m. Also given d =
0.3 mm = 3 x 10-4 m, D = 1.5 m
given d =
0.3 mm = 3 x 10-4 m, D = 1.5 m
