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What is the focal length of …

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What is the focal length of a lens whose radius of curvature is 30 cm.

Posted by Anjali Sharma 5 years ago

CBSE > Class 10 > Science

4 answers

Shreya P Shreya P 5 years ago

R =30cm R =2f f=R/2 = 30/2 = 15 cm Therefore, Focal length is 15 cm

Tanu Man 5 years ago

R=30 cm F=? F=R/2 =30/2 =15cm So,focal length is 15cm

Tadvi Saraswati 5 years ago

Radius of curvature R=30cm

Gaurav Seth 5 years ago

Radius of curvature R = 30 cm

Radius of curvature = 2 × Focal length (f)

R = 2 f

Hence, the focal length of the given convex mirror is 15 cm.

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