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Interactive Challenges

Five short puzzles. Instant feedback.

1

Produce maximum dispersion

Push prism angle and angle of incidence to widen the spectrum.

Prism angle A40°
Incidence i30°
35%
2

Identify the unknown colour

A monochromatic source has wavelength 510 nm. Which colour is it?

3

Arrange the EM spectrum (short → long λ)

  • Infrared
  • Visible Light
  • X-Rays
  • Gamma Rays
  • Ultraviolet
  • Radio Waves
  • Microwaves

Keep going…

4

Predict the sky colour

Sun overhead, clear atmosphere

Sun at the horizon

Observer on the Moon

Thick clouds overhead

5

Best colour for a fog danger signal?