1.

(5)Relation between focal length f and radius of curvature R of a sphericalmirroris -(a) R=f/2(b) f=R(c) f=R/2(d) f= 1/R​

Answer»

Answer:

Option : C

Explanation:

For a mirror of small APERTURE it can be CONCLUDED that focal length is TWICE of RADIUS of curveture.

OR

Radius is half of focal length.



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