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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
Sound can travel through ______.
Name one solid, on liquid and one gas through which sound can travel.
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
An electric bell is suspended by thin wires in a glass vessel and set ringing. Describe and explain what happens if the air is gradually pumped out of the glass vessel.
Sound travels in air :
The sound waves travel fastest :
Assuming the speed of sound in air equal to 340 m/s and in water equal to 1360 m/s, find the time taken to travel a distance 1700 m by sound in (i) air (ii) water.
Write the answer in your own words.
Explain with the help of practical examples how sound is propagated through solids.
How are bats able to avoid obstacles in their way?
In any medium, as the ______ increases, the speed of sound also increases.
