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SSC CPO SI and ASI Model Paper 9
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© examsiri.com
Question :
79 of 200
Marks:
+1
,
-0
Radius of curvature of a concave mirror is always
perpendicular to the mirror
forms an angle of 60o at its centre
parallel to the mirror
forms an angle of 90o at its centre
Validate
Solution:
(1) Distance between centre ofcurvature and the pole (the point atwhich principal axis touches themirror) is called radius of curvature.Radius of curvature of a concavemirror is always perpendicular tothe mirror.
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