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  • In young's double slit experiment, the separation between slits is trippled and distance between the slits is made one third. The fringe width isOption: 1</s

In young's double slit experiment, the separation between slits is trippled and distance between the slits is made one third. The fringe width is

Option: 1

 three times


Option: 2

one- third


Option: 3

unchanged


Option: 4

none of the above


Answers (1)

best_answer

\beta=\frac{\lambda D}{d}\mathrm{\beta=\frac{\lambda D}{d} }
\mathrm{\therefore \quad \quad \quad \beta^{\prime} =\frac{\lambda(D / 3)}{3 d}=\frac{\lambda D}{d} \cdot \frac{1}{9} }

Thus, the fringe width becomes one ninth.

Posted by

jitender.kumar

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