Question 139: Waves Optics

Question

In a Young's double slit experiment, the separation between the slits is 0.15 mm. in the experiment,
a source of light of wavelengh 589 nm is used and the interference pattern is observed on a
screen kept 1.5 m away. The separation between the successive bright fringes on the screen is :

Accepted Answer

$$\beta  = {{\lambda D} \over d} = {{589 	imes {{10}^{ - 9}} 	imes 1.5} \over {0.15 	imes {{10}^{ - 3}}}}$$ = 5.9 mm

Answer

4.9 mm

Answer

5.9 mm

Answer

6.9 mm

Answer

3.9 mm

Waves Optics

In a Young's double slit experiment, the separation between the slits is 0.15 mm. in the experiment, a source of light of wavelengh 589 nm is used and the interference pattern is observed on a screen kept 1.5 m away. The separation between the successive bright fringes on the screen is :

Choose the correct answer: