Question

What is the magnification produced by a rear-view mirror fitted in a vehicle?

• A. Equal to 1
• B. More than 1
• C. Less than 1
• D. Can be either more or less than 1, depending on the position of the object in front of it.

Answer 1

The correct option is C

Less than 1

Explanation for the correct option C: Always less than 1.

• Magnification is defined as the ratio of the height of the image to the height of the object.
• A convex mirror provides a large field of view because it forms a highly diminished image. Therefore, its magnification is always less than 1.

Explanation for the incorrect options

A: Equal to 1

Magnification of plane mirror is equal to 1, which is not used as a rear-view mirror.

B: More than 1

Magnification of concave mirror is more than 1, which is not used as a rear-view mirror.

D: Can be either more or less than 1, depending on the position of the object in front of it.

A convex mirror is used as a rear-view mirror in a vehicle as the magnification of the Convex mirror is always less than 1. It does not depend on the position of the object in front of it.

Final answer- The magnification produced by a rear-view mirror is less than 1. Hence option C is correct.