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UPSC NDA II 2015 General Ability Solved Paper

Question : 67

Total: 150

The radius of curvature of a concave mirror is twice its focal length
Power of a convex lens is negative and that of a concave lens is positive
The radius of curvature of a plane mirror is infinity
When a ray of light passes from an optically denser medium to an optically rarer medium, the angle of refraction is greater than the corresponding angle of incidence

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