English, asked by Srijansingh237, 4 days ago

1. A double convex lens has radii of curvature 20 cm and 30 cm respectively. Calculate its focal length in air and water. Given refractive vel index of glass w.r.t. air is 1.5 and that of water w.r.t, air is 1.33.

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Answered by poojachani

Answer:The answer is in the photo

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Answered by nitinsinghb552

Explanation:

. A double convex lens has radii of curvature 20 cm and 30 cm respectively. Calculate its focal length in air and water. Given refractive vel index of glass w.r.t. air is 1.5 and that of water w.r.t, air is 1.33.

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1. A double convex lens has radii of curvature 20 cm and 30 cm respectively. Calculate its focal length in air and water. Given refractive vel index of glass w.r.t. air is 1.5 and that of water w.r.t, air is 1.33. ​

Answers

1. A double convex lens has radii of curvature 20 cm and 30 cm respectively. Calculate its focal length in air and water. Given refractive vel index of glass w.r.t. air is 1.5 and that of water w.r.t, air is 1.33.