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प्रश्न
Two astronauts are floating close to each other in space. Can they talk to
each other without using any special device? Give reasons.
उत्तर
No, they cannot talk to each other without using any special device because there is no medium in space and sound needs medium to travel.
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संबंधित प्रश्न
How does the wave pattern of a loud note differ from that of a soft note? Draw a diagram.
Name the unit used to measure the sound level.
State the factor that determine the loudness of the sound heard.
By reducing the amplitude of a sound wave, its ______.
What are the properties of sound?
Loudness of sound is measured in units of
______ of sound depends on the amplitude of the wave.
The loudness of sound depends on the ______ of the sound wave.
Assertion: As the amplitude of sound increases, the loudness of sound decreases.
Reason: The loudness of sound depends on the amplitude of the wave.
