Question

A convex mirror is dipped in a liquid whose refractive index is equal to the refractive index of material of mirror. Then its focal length will
Become zero
Become infinite
Remain unchanged
Become small but not zero
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Answer 1

Answer:

Mist is a phenomenon caused by small droplets of water suspended in air. Physically, it is an example of a dispersion. It is most commonly seen where warm, moist air meets sudden cooling, such as in exhaled air in the winter, or when throwing water onto the hot stove of a sauna

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Answer 2

Answer: It will become infinite.