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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsYDSEMedium2 minPYQ_2023

PhysicsMediumsingle choice

In biprism experiment, if $5^{th}$ bright band with wavelength $λ_{1}^{'}$ coincides with $6^{th}$ dark band with wavelength $λ_{2}^{'}$ then the ratio $(\frac{λ _{2}}{λ _{1}})$ is

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Answer:

Solution:

The fifth bright band will be: $y_{5} = \frac{5 λ _{1} D}{d}$ $∴$ The sixth dark band will be: $∴ \frac{5 λ _{1} D}{d} 5 λ_{1} \frac{λ _{2}}{λ _{1}} y_{6}^{'} = \frac{11 λ _{2} D}{2 d} Given: y_{5} = y_{6}^{'} = \frac{11 λ _{2} D}{2 d} = \frac{11 λ _{2}}{2} = \frac{10}{11}$

Stream:MHT_CETSubject:PhysicsTopic:Wave OpticsSubtopic:YDSE

⏱ 2mℹ️ Source: PYQ_2023

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