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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at plane surfaceMedium2 minPYQ_2010

PhysicsMediumsingle choice

Two mirrors at an angle $θ^{\circ}$ produce 5 images of a point. The number of images produced when $θ$ is decreased to $θ^{\circ} - 3 0^{\circ}$ is

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Solution:

Hints: No. of images $= 5$ $∴ θ = 6 0^{\circ}$ New angle $= θ - 3 0^{\circ} = 3 0^{\circ}$ . No of images $= \frac{36 0 ^{\circ}}{3 0 ^{\circ}} - 1 = 11$

Stream:WBJEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at plane surface

⏱ 2mℹ️ Source: PYQ_2010

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