Physics
Grade-8
Easy
Question
In which of the following mediums does the sound propagate at the lowest speed?
- Air
- Water
- Iron block
- It moves at the same speed in all the above mediums
Hint:
The speed of sound is slower in the air as it is a gaseous medium.
The correct answer is: Air
- The sound is a mechanical wave that needs a strong medium to travel.
- The movement of the sound wave will be faster in solids and the slowest in the air.
- The sound propagates very slowly through the air.
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At a particular temperature, the speed of sound in a medium was found to be 450 m/s. The speed of sound in that medium will be _____ if the temperature of the medium is decreased?
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