Where should a convex lens. of focal length 9 cm be placed (in cm) between two point sources S_1 and S_2which are 24 cm apart, so that images of both the sources are formed at the same place. You have to find distance of lens from S_1 or S_2 which ever is lesser.

Where should a convex lens. of focal length 9 cm be placed (in cm) bet

1.	Where should a convex lens. of focal length 9 cm be placed (in cm) between two point sources S_1 and S_2which are 24 cm apart, so that images of both the sources are formed at the same place. You have to find distance of lens from S_1 or S_2 which ever is lesser.
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Where should a convex lens. of focal length 9 cm be placed (in cm) between two point sources S_1 and S_2which are 24 cm apart, so that images of both the sources are formed at the same place. You have to find distance of lens from S_1 or S_2 which ever is lesser.

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