What is the nature of the image formed by a concave mirror if the magnification produced is 4 and 2?

AcademicPhysicsNCERTClass 10

(a) The nature of the image formed by a concave mirror, with a magnification of $+4$, is virtual and erect because the magnification has a plus sign.

(b) The nature of the image formed by a concave mirror, with a magnification of $-2$, is real and inverted because the magnification has a minus sign.

Explanation

In a concave mirror, if 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.

On the other hand, if 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.

Updated on 10-Oct-2022 10:47:26

Text Solution

Solution : If the magnifiction has a plus sign (+), then the image is virtual and erect. In this case, the magnification has a plus sign (it us +3), therefore , the nature of this image is virtual and erect.

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