Other questions in this quiz

2. State a device where infrared is used

  • Remote control
  • Piano
  • Dog
  • Trumpet

3. What direction do particles move in a longitudinal wave?

  • In a zig-zag motion
  • Back and fouth
  • Up and down
  • The particles don't move

4. What is meant by the term 'Intense coherent'

  • When the waves are in phase and have the same frequency
  • When the waves have high divergence
  • When the waves aren't in phase but have the same frequency
  • When the waves are in phase but have different frequencies

5. What is meant by the term 'Amplitude?'

  • The number of waves produced per second
  • The maximum disturbance caused by the wave
  • The maximum weight of a wave
  • The distance between one crest to the other

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