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MHT CET Physics question

PhysicsWave OpticsMHT CET

A single slit Fraunhofer diffraction pattern is formed with white light. For what wavelength of light, the fourth secondary maximum in the diffraction pattern coincides with the third secondary maximum in the pattern for red light of wavelength 6500 Å?

Answer: (B)

Solution

Secondary maxima satisfy , so and Å; 4642.8 Å

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Question ID VK-077364