Question
Wed May 23, 2012 By: Aayusha Maharana

What type of a lens is formed by an air bubble inside water ?

Expert Reply
Thu May 24, 2012
The answer is that an air bubble in water would be diverging lens, because the index of refraction of air is less than that of water. It be be exactly the same if you think of anconcave lens made of glass. Light exiting the lens and into the air would diverge. That's why concave lenses are also call negative or diverging lens.
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