Question Detail

PHY 104 Reflection and Refraction of Light Objective Question

Question

In the magnification equation m = hi/ho = -di/do for spherical mirrors, what does a negative sign for magnification indicate?
Options
A The image is virtual.
B The image is upright.
C The image is inverted.
Correct Answer
D The image is smaller than the object.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 27 explains: 'The negative sign indicates that the image is inverted.' Page 34 also confirms this in the sign conventions: 'Magnification is positive if image is upright, negative otherwise.'

Hint

Relate the sign of magnification to the orientation of the image relative to the object.

Question Info