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max2010maxim [7]
3 years ago
8

Consider an underwater spherical air bubble (you can assume the index of refraction of air is 1 and water is 1.33) with radius R

. This bubble can act as a lens. What is its focal length?
Physics
1 answer:
Luba_88 [7]3 years ago
5 0

Answer:

-2R

Explanation:

The focal length can be calculated using this formula

1/f = (n1/n2-1)(1/r1-1/r2)

1/f = (1/1.33-1)(1/r + 1/r)

= -0.133/1.33(2/R)

F = -2R

The focal length is this

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