Kelvi

A beam of light of $\lambda = 600$ nm from a distant source falls on a single slit $1$ mm wide and the resulting diffraction pattern is observed on a screen $2$ m away. The distance between first dark fringes on either side of the central bright fringe is

medium

Wave Optics

2014

physics

$1.2$ cm

$1.2$ mm

$2.4$ cm

$2.4$ mm

Explanation

To solve this problem, we will use the formula for the position of dark fringes in a single-slit diffraction pattern. $\\$ The condition for the first dark fringe in single-slit diffraction is given by: $\\ a \sin \theta = m \lambda \\$ where: $\\$ • $a$ is the width of the slit (1 mm = $1 \times 10^{-3}$

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A beam of light of λ=600 \lambda = 600 λ=600 nm from a distant source falls on a single slit 1 1 1 mm wide and the resulting diffraction pattern is observed on a screen 2 2 2 m away. The distance between first dark fringes on either side of the central bright fringe is

Explanation

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A beam of light of $\lambda = 600$ nm from a distant source falls on a single slit $1$ mm wide and the resulting diffraction pattern is observed on a screen $2$ m away. The distance between first dark fringes on either side of the central bright fringe is