Jee Main
Wave Optics
JEE Main 2024 (Online) 30th January Morning Shift
MCQ+4 / -12024
The diffraction pattern of a light of wavelength \(400 \mathrm{~nm}\) diffracting from a slit of width \(0.2 \mathrm{~mm}\) is focused on the focal plane of a convex lens of focal length \(100 \mathrm{~cm}\). The width of the \(1^{\text {st }}\) secondary maxima will be :