Question

1) the magnification produced by a spherical lens is + 2.5 . What is the 1)nature of the image 2)nature of the lens

Answer 1

1) When the magnification is positive,then the image is virtual and erect. In this case,the magnification has a positive sign, so the nature is virtual and erect.

2) The value of magnification given here is 2.5 (which is more than one). So, the image is larger than the object or magnified. A virtual,erwct and magnified image can be formed only by a convex lens, therefore,the nature of lens is convex.

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