Concept explainers
To calculate the magnification of convex mirror by using ray
diagram.
Answer to Problem 24P
Solution:
The magnification of convex mirror
Explanation of Solution
Given Info:
Let height of object be
Height of image
Object distance
Image distance
Let the focal length and radius of curvature of mirror be ‘f’ and ‘r’ respectively.
Formula Used:
Magnification of mirror
Here, all alphabets are in their usual meanings.
Calculation:
First, we shall draw the ray diagram based on given condition
From the ray diagram, , and are similar, then
But from the ray diagram, image distance is negative, so equation (i)can be written as
Since the magnification of mirror
Hence from equation (ii)and (iii), we have,
The magnification of mirror
Chapter 23 Solutions
Physics: Principles with Applications
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