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Class 9
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Physics
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Sound
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Sound Needs a Medium
Sound Needs a Medium
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Sound Needs Medium
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Sound needs a medium
6 mins
Quick Summary With Stories
Sound Needs a Medium for Propagation
2 mins read
Bell Jar Experiment
3 mins read
Important Questions
Describe an activity to show that sound requires a material
medium for its propagation.
Medium
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Choose the correct answer.
Sound can travel through
Hard
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Sound waves cannot travel through
Medium
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Make a diagram of electric bell and explain its working system.
Hard
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Two astronauts on the surface of the moon cannot talk to each other. Why
Medium
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An alarm bell is kept inside a vessel as shown in Figure. A person standing close to it can distinctly hear the sound of the alarm. Now if the air inside the vessel is removed completely. How will the loudness of alarm get affected for the same person?
Hard
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Describe an experiment to show that sound can travel in water.
Medium
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The medium through which the sound travels fastest is empty space.
Easy
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Describe the bell jar experiment to prove that sound requires a medium to propagate.
Hard
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Which of the following statements is wrong?
Easy
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