Which of the following devices is correct for an object which is placed between the device and its focus and image formed is enlarged and formed on the same side of the object?

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Concave mirror

Convex lens

Concave lens

Convex mirror

answer is B.

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Detailed Solution

The image formed by a convex lens of an object which is placed between the device and its focus, is enlarged and is formed on the same side of the object.
A concave lens is one that has at least one side that curves inwards. A biconcave lens is a concave lens with both sides curved inward. Concave lenses are diverging lenses, which means they spread out light rays refracted through them.
In a convex lens, when the object is placed between its pole and principal focus, the image formed is an enlarged image and is real and erect as it is formed on the same side of the object.
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