Physics · 2024
JEE Main · 30 January 2024, Shift 1 · Q45
The diffraction pattern of a light of wavelength 400 nm diffracting from a slit of width 0.2 mm is focused on the focal plane of a convex lens of…
The diffraction pattern of a light of wavelength $\displaystyle 400$ nm diffracting from a slit of width $\displaystyle 0.2$ mm is focused on the focal plane of a convex lens of focal length $\displaystyle 100$ cm . The width of the $\displaystyle 1^{\mathrm{st}}$ secondary maxima will be:
Official answer
From NTA’s final answer key for this paper.
(1)
$\displaystyle 2$ mm
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JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.