Question Detail

PHY 104 Reflection and Refraction of Light Objective Question
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Question

Which of the following is NOT one of the three key rays used in ray diagrams for mirrors, as described in the document?
Options
A A ray parallel to the axis; after reflection it passes through the focal point.
B A ray through the focal point; after reflection it is parallel to the axis.
C A ray perpendicular to the mirror; it reflects back on itself.
D A ray directed towards the center of curvature; after reflection it passes through the focal point.
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Page 23 lists the three key rays: 1. A ray parallel to the axis; after reflection it passes through the focal point. 2. A ray through the focal point; after reflection it is parallel to the axis. 3. A ray perpendicular to the mirror; it reflects back on itself. Option D is incorrect.

Hint

Review the specific rules for drawing ray diagrams for spherical mirrors.

Question Info

Course: PHY 104
Topic: Reflection and Refraction of Light
Type: Objective
Difficulty: Not specified
Question 21 of 947
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