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Ray Optics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsRay Optics1 Mark
Question
While using an electric bulb, the reflection for street lighting should be from(a) Concave mirror(b) Convex mirror(d) Parabolic mirror(d) Parabolic mirror
       
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Answer

(b) Convex mirror

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