Physicshard · Past Paper
What is the angle of incidence when a ray of light is reflected back along its own path from a spherical mirror?
A0 degrees
B90 degrees
C45 degrees
D180 degrees
✓ Correct Answer: A — 0 degrees
Light hitting the mirror normally (along the radius of curvature) has an angle of incidence of 0 and reflects back on itself.
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