Where should an object be placed so that a virtual and erect image of enlarged size is obtained by a convex lens?

At f

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Between f and 2f

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Between f and pole

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At infinity

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Solution

The correct option is C Between f and pole
The nature and size of the image formed by a convex lens depends on the position of the object. To form a virtual and enlarged image, objects should be placed between focus and pole. The ray diagram is given as below:

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Similar questions

Use the mirror equation to deduce that:

(a) an object placed between f and 2f of a concave mirror produces a real image beyond 2f.

(b) a convex mirror always produces a virtual image independent of the location of the object.

(c) the virtual image produced by a convex mirror is always diminished in size and is located between the focus and the pole.

(d) an object placed between the pole and focus of a concave mirror produces a virtual and enlarged image.

[Note: This exercise helps you deduce algebraically properties of

images that one obtains from explicit ray diagrams.]

Where should an object be placed in front of a convex lens so as to obtain its virtual, erect and magnified image ?

Show analytically that an object placed between the pole and focus of a concave mirror produces a virtual and enlarged image.

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