Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceMedium2 minPYQ_2011

PhysicsMediumsingle choice

A glass slab of thickness $4 cm$ contains the same numbers of waves as $5 cm$ of water when both are traversed by the same monochromatic ray of light. The refractive index of water is $4/3$ , what is that for glass?

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Answer:

Solution:

$a n_{g} =_{a} n_{w} \times_{a} n_{g}$ $a n_{g} = \frac{4}{3} \times \frac{λ _{w}}{λ _{g}} a^{n_{g}} = \frac{4}{3} \times \frac{5}{4} a^{n_{g}} = \frac{5}{3}$

Stream:MHT_CETSubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at plane surface

⏱ 2mℹ️ Source: PYQ_2011

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