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In a Young's double slit experiment, 12 ...

In a Young's double slit experiment, 12 fringes are observed to be formed in a certain segment of the screen when light of wavelength `600nm` is used. If the wavelength of light is changed to `400nm`, number of fringes observed in the same segment of the screen is given by

A

`12`

B

`18`

C

`24`

D

`30`

Text Solution

Verified by Experts

The correct Answer is:
B
`n_1lambda_1=n_2lambda_2impliesn_2=n_1xxlambda_1/lambda_2=12xx(600)/(400)=18`
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A2Z-WAVE OPTICS-Young'S Double Slit Experiment
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