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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsYDSEEasy2 minPYQ_2014

PhysicsEasysingle choice

A beam of light of $λ = 600 n m$ from a distant source falls on a single slit $1 m m$ 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:NEET 2014

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Answer:

Solution:

Angular width of $1^{s t}$ maxima
$2 θ = \frac{2 λ}{a}$
Linear width of $1^{s t}$ maxima $= (D) (2 θ) = \frac{2 λ D}{a} = \frac{2 \times (600 \times 10^{- 9}) (2)}{1 \times 10^{- 3}} = 2.4 m m$

Stream:NEETSubject:PhysicsTopic:Wave OpticsSubtopic:YDSE

⏱ 2mℹ️ Source: PYQ_2014

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