Question

The magnification produced by a spherical lens is +0.75. What (a)nature of lens (b) nature of image?

Answer 1

Answer:

Explanation :a) When the magnification is positive, the nature of image is virtual and erect. In this, case, the magnification is positive, so the nature of image is virtual and erect.

b) The value of magnification given here is 0.75(which is less than 1), so, the image is smaller than the object or diminshed. A virtual, erect and diminished image can be formed only by a concave lens, so the nature of lens is concave.

Answer 2

Answer:

Concave lens and the formed image is virtual and erect.

Explanation:

We have,

The magnification of spherical lens is +0.5

It is less than 1. It means that the formed image is smaller than that of the object. It is the property of a concave lens to form a virtual, erect and diminished image. So, the given lens is a concave lens.

Explanation: