In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a screen placed 1m away, was found to be 0.2o. What will be the angular width of the first minima, ($\mu $water = 4/3) if the entire experimental apparatus is immersed in water?

Question

In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a screen placed 1m away, was found to be 0.2^o. What will be the angular width of the first minima, ($\mu $_water = 4/3) if the entire experimental apparatus is immersed in water?

0.15^o

0.05^o

0.1^o

0.266^o

Solution

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