The pinhole camera works on

JAMB Physics 2023 307 views
Source: JAMB · 2023

The pinhole camera works on

  1. the principle of the reversibility of light
  2. the principle of the rectilinear propagation of light ✓
  3. Huygen’s principle
  4. the principle of total internal reflection of light
Explanation

A pinhole camera forms an upside-down image because light travels in straight lines. Rays from the top of an object pass through the hole and land at the bottom of the screen, and the reverse.

This is the rectilinear propagation of light.

Was this explanation helpful?

Something wrong or missing? Tell us — we read every report and fix issues fast.

pastQuestions.ng pastquestions.ng