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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Young double-slit experiment is carried out by using green, red and blue light, one colour at a time. The fringe widths recorded are $β_{G}, β_{R}$ and $β_{B}$ respectively, then

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Answer:

Solution:

Since, we know, fringe widths,

$β = \frac{λ D}{d}$

Therefore, $β \propto λ$

Where, $λ =$ wavelength of light,

$D =$ distance between screen and slits

And $d =$ distance between slits.

We know, $λ_{R} > λ_{G} > λ_{B}$

Thus, $β_{R} > β_{G} > β_{B}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave OpticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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