Question

To form an image twice the size of the object, using a convex lens of focal length 20 cm, the object distance must be

2 points

a) < 20 cm

b) > 20 cm

c) < 20 cm and between 20 cm and 40 cm

d) cannot say

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Answer 1

Answer:

d. cannot say

Explanation:

We cannot able to say since we need one more value such as height of the object, height of the image etc.......

Answer 2

Answer:

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