The nature of the image formed by a concave mirror, if the magnification produced by the mirror is +4 and -2 are [[1]] and [[2]] respectively.

Solution:

The nature of the image formed by a Concave mirror , if the magnification produced by the mirror is

+ 4

and

- 2

are virtual and erect and real and inverted, respectively.
Given,
Magnification of the concave mirror,

m = + 4

The nature of the image formed by a concave mirror, with a magnification of

+ 4

, is virtual and erect because of the positive magnification. When the height of the object and the image is above the principal axis, then it implies that the image is virtual and erect, and its magnification will always be positive.
And if magnification of the concave mirror,

m = - 2

The nature of the image formed by a concave mirror, with a magnification of

- 2

, is real and inverted because of the negative magnification. When the height of the object is above the principal axis, and the height of the image is below it, then it implies that the image is real and inverted, and its magnification will always be negative.