Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsMiscellaneousMedium2 minPYQ_2021

PhysicsMediumsingle choice

Two coherent sources ' $P$ ' and ' $Q$ ' produce interference at point ' $A$ ' on the screen, where there is a dark band which is formed between $4^{th}$ and $5^{th}$ bright band. Wavelength of light used is $6000 \overset{˚}{A}$ . The path difference PA and QA is

Options:

Answer:

Solution:

The dark band between the $4^{th}$ and $5^{th}$ bright band in the $5^{th}$ dark band. For $5^{th}$ dark band, the path difference is $(5 - \frac{1}{2}) λ = 4.5 λ = 4.5 \times 6000 = 2.7 \times 1 0^{- 4} cm$

Stream:MHT_CETSubject:PhysicsTopic:Wave OpticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2021

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