Question

If the the focal length of convex lens in convex lens in air is 40cm when it is immersing in water then the focal length will be(a)20 cm (b)160 cm (c) 80cm (d) 40cm ​

Answer 1

Step-by-step explanation:

★Given

If the the focal length of convex lens in convex lens in air is 40cm when it is immersing in water then the focal length will be

★To Find

Focal Length?

★Solution

Refer To The Attachment!

Hope It Helps!!

Answer 2

Answer:

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Step-by-step explanation:

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