Physics · 2017
JEE Main · 8 April 2017, Shift 1 · Q23
A single slit of width b is illuminated by a coherent monochromatic light of wavelength λ. If the second and fourth minima in the diffraction pattern…
A single slit of width b is illuminated by a coherent monochromatic light of wavelength $\displaystyle \lambda$. If the second and fourth minima in the diffraction pattern at a distance $\displaystyle 1$ m from the slit are at $\displaystyle 3$ cm and $\displaystyle 6$ cm respectively from the central maximum, what is the width of the central maximum ? (i.e. distance between first minimum on either side of the central maximum)
Official answer
(2)
3.$\displaystyle 0$ cm
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