Question

Where an object should be placed in front of a concave lens to obtain a virtual image of the object?

a) Infinity
b) Principal focus
c) Very close to the lens
d) Any distance from the lens

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Answer 1

Answer :

c)Very close to the lens.

Explanation :

The object should be placed within the focus (between the pole and the focus) and in front of the concave mirror in order to obtain a virtual, erect and magnified image.