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The magnification of an object placed in front of a convex lens is +2. The focal length of the lens is 2.0 metres. Find the distance by which object has to be moved to obtain a magnification of  (in metres)



Question ID - 154114 | SaraNextGen Top Answer

The magnification of an object placed in front of a convex lens is +2. The focal length of the lens is 2.0 metres. Find the distance by which object has to be moved to obtain a magnification of  (in metres)

1 Answer
127 votes
Answer Key / Explanation : (2) -

(2)

For magnification  and  m

From , we have 

 m

For magnification of  m

We have  m

So distance to be moved  m

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