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In a double-slit experiment the angular ...

In a double-slit experiment the angular width of a fringe is found to be `0.2^(@)` on a screen placed 1 m away. The wavelength of light used is 600 nm. What will be the angular width of the fringe if the entire experimental apparatus is immersed in water? Take refractive index of water to be 4/3.

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`0.15^(@)`
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NCERT BANGLISH-WAVE OPTICS-EXERCISES
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  12. In double-slit experiment using light of wavelength 600 nm, the angula...

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  13. Answer the following questions: (a) In a single slit diffraction exp...

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  19. A parallel beam of light of wavelength 500 nm falls on a narrow slit a...

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