Q.

Is it true that a concave lens can be used to produce an enlarged and erect image?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is false.
Regardless of the position of an object, a concave lens always produces a virtual, erect, and diminished image. However, a convex lens can be used to produce a virtual, erect, and enlarged image. When an object is put between the focus and the optical centre of a convex lens, it can create a virtual, erect, and enlarged picture.
The correct statement would be that a concave lens cannot be used to produce an enlarged and erect image.
 
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