Chapter 17, Problem 49A

To determine

The equation relating the focal point, object position and image position.

Answer to Problem 49A

Mirror Equation

Explanation of Solution

Introduction:

Whenever an object is placed in front of a mirror, an image is produced. This image distance can be determined using the focal length of the mirror and the object distance in the Mirror equation.

Mirror equation is given by,

  $\frac{1}{f}=\frac{1}{d_i}+\frac{1}{d_o}$

Where,

  $\begin{array}{l}f=\text{focal length}\\ d_i=\text{ image distance}\\ d_o=\text{object distance}\end{array}$

Conclusion:

Hence, the Mirror equation relates the focal point, object position and image position.