Explain the experiment, with neat diagram, to prove
the following:
‘Sound needs material medium for propagation.’
Answers
Answer:
Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves
Explanation:
Answer:
The experiment to prove that sound needs material medium for propagation is relatively simple. It involves two beakers, a tuning fork, and a thermometer. The first beaker should be filled with water and the second one should be left empty. The tuning fork should be set to vibrate and the base of the tuning fork should be placed on the open mouth of the first beaker. The thermometer should be slowly lowered into the water-filled beaker until it reaches the bottom.
When the tuning fork is vibrating, the sound waves will travel down through the water and to the thermometer. The thermometer will then detect the sound waves as a temperature change. This temperature change will be registered as a sound wave on the thermometer. This proves that sound needs a material medium for propagation because the water acted as the medium for the sound waves to travel.
If the experiment is repeated with the second beaker, which is empty, the thermometer will not detect any sound waves. This is because sound needs a material medium for propagation, so without a medium the sound waves cannot travel to the thermometer.
In summary, the experiment to prove that sound needs a material medium for propagation involves two beakers, a tuning fork, and a thermometer. The tuning fork should be set to vibrate and the base of the tuning fork should be placed on the open mouth of the first beaker. The thermometer should be lowered into the water-filled beaker until it reaches the bottom. The thermometer will then detect the sound waves as a temperature change, proving that sound needs a material medium for propagation. The experiment should then be repeated with the second beaker, which is empty, and the thermometer will not detect any sound waves. This proves that sound needs a material medium for propagation.
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