Class VIII

An instrument which enables us to see objects which are not in our direct line of sight is called
  1. microscope
  2. telescope
  3. kaleidoscope
  4. periscope
Glass, tracing paper are
  1. transparent
  2. translucent
  3. opaque
  4. semi-absorbent
Mirror which have inner surface like a sphere is called
  1. convex mirror
  2. concave mirror
  3. plane mirror
  4. cosmetic mirror
Light Year is related to
  1. Energy
  2. Speed
  3. Distance
  4. Intensity
The phenomenon of breaking up of light into its seven constituent colours is known as ... 
  1. Reflection of light 
  2. Refraction of light 
  3. Dispersion of light 
  4. Radiation of light 
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