Advertisements
Advertisements
प्रश्न
A person hearing at one end of a long metal bar hears two distinct sounds when the other end is struck with a stone. Explain, giving scientific reasons
Advertisements
उत्तर
A person hearing at one end of the long metal bar hears two distinct sounds when the other end is struck with a stone because the sound comes from the metal bar as well as from the air. The sound travels faster in solids than air. So, the first sound comes from metal bar hitting and then from the air.
APPEARS IN
संबंधित प्रश्न
'Note' is a sound :
State the speed of (i) light and (ii) sound in air?
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first: boatman or diver?
(ii) Give a reason for your answer in part (i).
(iii) If sound takes time t to reach the boatman, how much time approximately does it take to reach the diver?
What do you mean by the audible range of frequency?
A medium is necessary for ______ of sound.
Describe briefly an experiment to prove that vibrating bodies produce sound.
What is sound? Explain with example how does sound travel in a medium.
What type of sound is produced by elephants and whales?
Vibration of object produces ______.
