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A convex mirror may be used for all but it can NOT be used for

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Important Questions on Ray Optics

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A 4.5 cm long needle is placed 12 cm away from a convex mirror of focal length15 cm. Locate the image of the needle from the mirror.
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An object is placed at a distance of 25 cm From a spherical mirror, its image is formed behind the mirror at a distance of 5 cm. The focal length and type of mirror is
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According to new Cartesian sign convention, all the distances are measured from
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While deriving expression for refraction at single curved surface, the object is considered as
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The correct expression for refraction at single convex spherical surface separating two media of refractive indices μ1 and μ2μ2>μ1 and radius of curvature R is (u and v are object, image distance, respectively)
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A point object is situated in air at a distance of 20 cm from a convex refracting surface of 5 cm radius. The position of the image is μ=1.5

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