Question

Magnification of lens is +0.5.write the nature of the image and what type of lens is used?

Answer 1

Answer:

• If the magnification of image is +0.5 that means it is virtual and erect image as according to the new cartesan plane lens sign convention
• if the image is virtual then, we know that both the lens convex and concave form virtual image
• But there the image is 0.5 in height that means it is smaller than the object and there is only one lens which form both virtual and small object i.e. Concave lenss
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Answer 2

Answer:

if the magnification is positive, then the image is erect and if it is below than 1 , then the image is diminished.

Therefore, the image is virtual, erect and diminished and the type of lens used is a concave lens.

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