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प्रश्न
State one observation from everyday life which shows that sound travels much more slow than light.
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उत्तर
During rainy season, it is a common observation that the flash of lightning is seen first while the sound of thunder is heard a little later. This is because light (3 × 108 m/s) travels faster than sound (340 m/s) in air.
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संबंधित प्रश्न
Describe with the help of a diagram, how compressions and rarefactions are produced in air near a source of sound.
In which medium sound travels fastest : air, water or steel?
Fill in the blank with suitable word.
Sound cannot travel through ____________.
Through which of the following materials can sound travel? wood, air, water, steam, ice, hydrogen, steel, diamond.
Sound travels in air :
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
Describe an experiment to prove that a material medium is necessary for the propagation of sound.
State three characteristics of the medium required for the propagation of sound.
The speed of sound is ______ in solids than in liquids
The amount of water vapour present in the air is known as ______.
