MHT CET 2024 Physics question
Two wavelength 590 nm and 596 nm of sodium light are used one after another, to study diffraction taking place at single slit of aperture 2.4 mm. the distance between the slit and screen is 2 m. the separation between the positions of first secondary maximum of the diffraction pattern obtained in the two cases is
Answer: (A)
Solution
In single-slit diffraction the th secondary maximum is at . For the first secondary maximum (): . The separation for the two wavelengths is \dfrac{3D}{2a}$(λ_2 - λ_1) =
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