Class VIII

Splitting of white light in to its component colors is called
  1. reflection
  2. refraction
  3. dispersion
  4. diffusion
Line which is at right angle to surface is called
  1. normal ray
  2. incident ray
  3. reflected ray
  4. all of them
Materials which allow all light to pass through them are called
  1. transparent
  2. translucent
  3. opaque
  4. semi-absorbent
Light refracts due to its
  1. speed
  2. volume
  3. density
  4. area
Angle of reflection lies between reflected ray and
  1. normal ray
  2. incident ray
  3. convergent ray
  4. all of them
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