amy575 amy575
  • 30-10-2019
  • Physics
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the normal is an imaginary line that is ____ to a surface

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kingaborycka
kingaborycka kingaborycka
  • 30-10-2019
The normal is an imaginary line at right angles to the plane mirror. Smooth surfaces produce strong echoes when sound waves hit them, and they can act as mirrors when light waves hit them. The waves are reflected uniformly and light can form images.
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