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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsYDSEEasy2 minQB

PhysicsEasysingle choice

White light is used to illuminate the two slits in Young's double-slit experiment. The separation between two slits is $x$ and the screen is at distance $z > > x$ from the slits. At a point on the screen directly in front of one of the slit which wavelength is absent?

Options:

Answer:

Solution:

$y_{n^{t h}} d a r k = \frac{(2 n - 1) λ D}{2 d}$ $= \frac{(2 n - 1) \times z}{2 x}$

$\frac{x}{2} = \frac{(2 n - 1)}{2} \frac{λ z}{x}$

$λ = \frac{x^{2}}{(2 n - 1) z}$

$λ = \frac{x^{2}}{z}$ for $n = 1$

$λ = \frac{x^{2}}{3 z}$ for $n = 2$

$λ = \frac{x^{2}}{5 z}$ for $n = 3$

Stream:JEESubject:PhysicsTopic:Wave OpticsSubtopic:YDSE

⏱ 2mℹ️ Source: QB

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