Question

Which of the following ray diagrams is not correct?

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

The explanation for correct answer

Option (C):

1. When the incident rays are parallel to the principal axis, after reflection they should pass through the focus.
2. Since light rays diverge as they strike a convex mirror's reflecting surface, it is also known as a diverging mirror.
3. The reflected ray will be parallel to the major axis when a ray passes through focus and impacts concave or convex mirrors.
4. Therefore the diagram in option (C) is not correct.

Explanation for incorrect options

In the case of option A,

1. The image will be formed beyond the center of curvature.

In the case of option B,

1. The image will be formed at the center of curvature.

In the case of option D,

1. The light ray is parallel to the principal axis, hence the image will be formed at the focus.

Therefore, the correct option is (C).