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MHT CET Physics question

PhysicsWave OpticsMHT CET

In the single slit diffraction, the distance between plane of slit and screen is 1 m. The width of the slit is 0.7 mm and secondary maximum is formed at the distance of 2 mm from the centre of the screen, then the wavelength of light used is [MHT-CET 2011]

Answer: (B)

Solution

The first secondary maximum satisfies with , so

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Question ID VK-077603