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6. What is retinal adaption?

  • stabilised images fade rapidly
  • The absence of sensory stimulation increases sensitivity
  • : if an image is stabilized on the retina it fades, normally our eyes are constantly in motion to prevent this, which serves to reduce visual clutter and concentrate on changes
  • Waves of energy that are caused by the acceleration of charged particles

7. Which of these is not one of the characteristics of light?

  • Intensity
  • Colour
  • Wavelength

8. The wavelength of light becomes apparent to us in...

  • Fading
  • Brightness
  • Colour
  • Intensity