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NEET 2016 Physics question

PhysicsWave OpticsNEET 2016

In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle when light of wavelength is incident on the slit. The first secondary maximum is observed at an angle of:

Answer: (4)

Solution

For a single slit, minima occur at and secondary maxima occur approximately midway between minima, at . First minimum: . First secondary

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Question ID VK-091840