alleryStart learning →The normal at any point on a spherical mirror lies along the line joining that point to the
Apole of the mirror
Bprincipal focus
Cthe focal plane
Dcentre of curvature
Answer & Solution
Correct answer: D. centre of curvature
1. A radius of a circle is always perpendicular to the tangent at that point.
2. The mirror is part of a sphere whose centre is C.
3. So the line from any surface point to C is the normal there.
_Source: AP/TS SCERT Class 10 Physical Science, "Reflection of Light at Curved Surfaces"_
Keep practising Reflection of Light at Curved Surfaces
Browse all Reflection of Light at Curved Surfaces questions for Andhra Pradesh SSC (Class 10), or explore more Physics topics.
Related questions
Which mirror has the larger focal length?Fill in the correct mirrorSort each use by the mirror it needsWhich one does NOT belong?True or false: spherical mirrorsMatch each mirror term to its meaningA concave mirror forms an erect image only when the object is placedA convex mirror gives a wider field of view than a plane mirror of the same size because i