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Subject :NSO    Class : Class 8

An object O and its image I are shown below. Where is the position of the converging lens?

B2 and 3
D3 and 4

Drawn to scale is very difficult to measure and is confusing.

Ans 1:

Class : Class 10

Ans 2:

Class : Class 10

Ans 3:

Class : Class 8
Nothing has been mentioned here, how are we supposed to know whether or not the object is placed at 2F(1) and its image is formed at 2F(2)

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