Question

In which the power of a lens will be larger-air or water answer
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Answer 1

Answer:

in air

Explanation:

If it is immersed in water its power will be. Solution : Since focal length in water increases , hence power decreases

Answer 2

The power of a lens will be larger in the air.

• The power of a lens represents the converging or diverging capacity of the lens.
• It is inversely proportional to the focal length of the lens, and, is given as $P=\frac{1}{f},$ where P is the power and f is the focal length of a given lens.
• Now, when a lens is inside water, it is in a denser medium compared to air. In water, its ability to converge or diverge light rays will be reduced. This happens due to the relation of the refractive index according to Snell's law.
• Thus, in water light will bend less, and the focal length of the lens in water will be more as compared to air.
• Therefore power, being inversely proportional to the focal length, will be more in the air.