Physics · 2016
NEET 2016 · 24 July · Code AA · Q38
A linear aperture whose width is 0.02 cm is placed immediately in front of a lens of focal length 60 cm. The aperture is illuminated normally by a…
A linear aperture whose width is $\displaystyle 0.02$ cm is placed immediately in front of a lens of focal length $\displaystyle 60$ cm. The aperture is illuminated normally by a parallel beam of wavelength $\displaystyle 5 \times 10^{-5} \mathrm{~cm}$. The distance of the first dark band of the diffraction pattern from the centre of the screen is
Official answer
From NTA’s final answer key for this paper.
(4)
0.$\displaystyle 15$ cm
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NEET (UG) 2016 Physics question, with the answer from NTA’s final answer key. Where our answers come from.