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PHY 104 Refraction Through Lenses and Optical Instruments Objective Question
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Question

Which of the following is NOT one of the three key rays used for ray tracing in thin lenses?
Options
A A ray that comes in parallel to the axis and exits through the focal point.
B A ray that comes in through the focal point and exits parallel to the axis.
C A ray that goes through the center of the lens and is undeflected.
D A ray that passes through the object's top and reflects parallel to the axis.
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Page 8 lists the three key rays for thin lenses: 1. Parallel to axis, exits through focal point. 2. Through focal point, exits parallel to axis. 3. Through the center, undeflected. Option D describes reflection, which is for mirrors, not refraction through lenses.

Hint

Recall the fundamental principles of ray tracing for lenses, focusing on refraction, not reflection. Consult page 8.

Question Info

Course: PHY 104
Topic: Refraction Through Lenses and Optical Instruments
Type: Objective
Difficulty: Not specified
Question 77 of 947
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