EASY
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Which one of the following statements is not correct?
(a)The radius of curvature of a concave
mirror is twice its focal length.
mirror is twice its focal length.
(b)Power of a convex lens is negative
and that of a concave lens is
positive.
and that of a concave lens is
positive.
(c)The radius of curvature of a plane
mirror is infinity.
mirror is infinity.
(d)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.
optically denser medium to an
optically rarer medium, the angle of
refraction is greater than the
corresponding angle of incidence.

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UPSC CAPF AC Paper - I
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List I List II
A. Reflection 1. = sin i/sin r
B. Refraction 2. Used for reducing glare
C. Interference 3. Light added to light produces darkness
D. Polarisation 4. Change in path of light without change in medium

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UPSC CAPF AC Paper - I
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UPSC CAPF AC Paper - I
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