The magnification of an image formed by plane mirror is +1. What does this mean?

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Chapter 9 NCERT Class 10 Science SOLUTIONS

13. The magnification of an image formed by plane mirror is +1. What does this mean?

Question:

The magnification of an image formed by plane mirror is +1. What does this mean?

Answer:

The image formed by plane mirror has m = +1. Plus (+) sign represent that the image is virtual and erect. In this mirror, the size of an image is equal to that of an object.

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