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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Light propagates $2 cm$ distance in a glass of refractive index $1.5$ in time $t_{0}$ . In the same time $t_{0}$ , light propagates a distance of $2.25 cm$ in a medium. The refractive index of the medium is

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Answer:

Solution:

For a given time, optical path remains constant

$∴ μ_{1} x_{1} = μ_{2} x_{2}$

$or 1.5 \times 2 = μ_{2} \times 2.25$

$∴ μ_{2} = \frac{1.5 \times 2}{2.25} = \frac{2}{1.5} = \frac{20}{15} = \frac{4}{3}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave OpticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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