Question

If object is placed at a distance 20 cm from pole
and image formed at a distance 10 cm behind the
concave mirror. It's radius of curvature R will be :
a) 20cm
(B) 10 cm
(c) 30 cm
(D)40cm
​

Answer 1

Answer:

I distance will be 30 cm

Explanation:

done...............

Answer 2

Answer:

Option c is right answer

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