Refraction and Reflection of
Microscopes, binoculars, cameras,
and telescopes form images by refracting light or by reflecting light.
The key difference between refraction and reflection is shown below.
Refraction occurs in when light enters a transparent material.
Light slows down and changes direction - different wavelengths of light
are affected by different amounts - shorter wavelengths are slowed more
and their direction changes more.
The animation below shows this effect
This effect tends to spread out the different wavelengths of
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