ssertion : In the case of a stationary wave, a person hear a loud sound at the nodes as compared to the antinodes.Reason : In a stationary wave all the particles of the medium vibrate in phase.
Question
ssertion : In the case of a stationary wave, a person hear a loud sound at the nodes as compared to the antinodes.Reason : In a stationary wave all the particles of the medium vibrate in phase.
Solution
The assertion is incorrect while the reason is correct. In a stationary wave, a person would hear a louder sound at the antinodes, not the nodes. This is because the antinodes are the points of maximum amplitude in a standing wave, meaning they produce the loudest sound. On the other hand, nodes are points of zero amplitude, so no sound would be heard at these points.
The reason is correct in stating that all particles of the medium vibrate in phase in a stationary wave. However, this doesn't affect the loudness of the sound at the nodes or antinodes. The phase of vibration affects the position of the nodes and antinodes, but it's the amplitude of vibration at these points that determines the loudness of the sound.
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