Question

Inside water, an air bubble behaves ____________.

• A. Always like a flat plate
• B. Always like a concave lens
• C. Always like a convex lens
• D. Always like a concave mirror

Answer 1

The correct option is B Always like a concave lens

Inside water the air bubble behaves as the concave lens or a diverging lens as light coming out from the air bubble to water will appear to diverge because air is rarer than water shown in the image.