Question Detail

PHY 104 Refraction Through Lenses and Optical Instruments Objective Question

Question

One of the three key rays for ray tracing thin lenses states that a ray coming in parallel to the axis will:
Options
A Go through the center of the lens and be undeflected.
B Exit through the focal point.
Correct Answer
C Reflect back along its original path.
D Always be absorbed by the lens.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 8, point 1 states: 'This ray comes in parallel to the axis and exits through the focal point.'

Hint

Recall the fundamental behaviors of light rays passing through a lens, specifically for parallel incoming rays.

Question Info