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The radius of the sphere the mirror forms part of is the radius of:
ACollision
BCurvature
CCoverage
DClearance
Answer & Solution
Correct answer: B. Curvature
1. It is represented by the letter R.
2. It measures from the centre to the surface.
3. It is the radius of curvature.
_Source: NCERT Class 10 Science, Ch 10 'Light - Reflection and Refraction'_
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