Question Detail

PHY 104 Reflection and Refraction of Light Objective Question

Question

When solving problems with spherical mirrors, what is the sign convention for the object, image, or focal point if it is on the reflective side of the mirror?
Options
A Its distance is always negative.
B Its distance is always positive.
Correct Answer
C Its distance is positive for concave mirrors and negative for convex mirrors.
D Its distance can be either positive or negative, depending on the magnification.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 34, under 'Problem Solving: Spherical Mirrors,' rule 3 states: 'Sign conventions: if the object, image, or focal point is on the reflective side of the mirror, its distance is positive, and negative otherwise.'

Hint

The reflective side is where the actual light rays interact with the mirror.

Question Info