Imagine if there is a convex lens which is made of a material whose optical density is less than that of the air, it would still act as:

plane mirror

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diverging lens

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converging lens

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can't be said

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Solution

The correct option is B diverging lens
If the optical density of the material used in the lens is less than that of the air, speed of light increases in the lens, instead of being slowed down. So, the convex lens diverges the light instead of converging it and thus acts as a diverging lens.

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Imagine if there is a convex lens which is made of a material whose optical density is less than that of the air, it would still act as:

The correct option is B diverging lensIf the optical density of the material used in the lens is less than that of the air, speed of light increases in the lens, instead of being slowed down. So, the convex lens diverges the light instead of converging it and thus acts as a diverging lens.

The correct option is B diverging lens
If the optical density of the material used in the lens is less than that of the air, speed of light increases in the lens, instead of being slowed down. So, the convex lens diverges the light instead of converging it and thus acts as a diverging lens.