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Wave Optics question

2022 · 28 Jun · Shift 2 · Q70
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Wave Optics question

2022 · 28 Jun · Shift 2 · Q70

JEE MainPhysicsWave OpticsNumerical+4 / −1
In a Young's double slit experiment, an angular width of the fringe is 0.35 ∘^\circ∘ on a screen placed at 2 m away for particular wavelength of 450 nm. The angular width of the fringe, when whole system is immersed in a medium of refractive index 7/5, is 1α{1 \over \alpha }α1​. The value of α\alphaα is ‾\underline{\hspace{2cm}}​.
Numerical answer
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