An antinode on a wave is the point at which ________.

  1. amplitude is zero
  2. amplitude is mean value 
  3. amplitude is maximum
  4. amplitude is squared

Answer (Detailed Solution Below)

Option 3 : amplitude is maximum
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Detailed Solution

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CONCEPT

In standing wave or stationary wave, i.e. a combination of two waves moves in the opposite direction with the same amplitude and frequency get superimposed and form nodes and antinodes.

EXPLANATION

  • An antinode is a point on the wave where the amplitude is maximum and hence it is the wave crest.
  • Node is a point where the amplitude of oscillation is zero, i.e. displacement is minimum from mean.
  • F1 J.K Madhu 20.06.20 D4
  • This is usually depicted for stationary waves, that is waves which have a steady pattern and have no direction of motion.

⇒ Option 3 is correct

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