Question

Balance a produces a magnification of -
-0.6 whereas lens be produced magnification of + 0.6 what is the nature of lens A and B

Answer 1

1.Whereas the type of lens can be decided by its negativity or positivity. If the magnification is positive then the lens is convex and if the magnification is negative then the lens is concave.
2.The nature of lens A is concave and the nature of B is convex

Answer 2

Balance A has convex lens while balance B has concave lens.

Explanation:

Balance A produces a magnification of - 0.6 D while lens be produced magnification of +0.6. We need to say about the nature of lens A and B.

We know that, positive magnification implies that the image is virtual and erect while negative magnification implies that the real and inverted.

Since, real image is formed by the convex lens, its magnification is negative while the magnification of concave lens is positive.

So, balance A has convex lens while balance B has concave lens. Hence, this is the required solution.

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