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MHT CET Physics question

PhysicsWave OpticsMHT CET

A parallel beam of light of wavelength 500 nm falls on a known slit and the resulting diffraction pattern is observed on a screen 1 m away. It is observed that the first minima is at a distance of 2.5 mm from the centre of the screen, what is the width of the slit?

Answer: (A)

Solution

The first minimum is at , so m

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Question ID VK-077374