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Light Reflection and Refraction
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02/12/2020 3:43 pm
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Define the focus of a concave mirror. If the radius of curvature of a convex mirror is 30 cm, what would be its focal length?
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02/12/2020 3:44 pm
The point on the principal axis where all the rays parallel to it meet after reflection is called focus. Since, R = 30 cm and f = R/2 we have, f = +15 cm for a convex mirror.