Advertisements
Advertisements
प्रश्न
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a village
Advertisements
उत्तर
The person would hear a very little noise in village traffic. Hence, he can conclude that he was in a village.
APPEARS IN
संबंधित प्रश्न
Describe an experiment to show that sound can travel in water.
Which of the following is the speed of sound in copper and which in aluminium?
(a) 5100 m/s
(b) 1500 m/s
(c) 3750 m/s
If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track?
What is the speed of sound :
(a) in air?
(b) in water?
(c) in iron?
Fill in the blank with suitable word :
The speed of sound in a solid is ............... than the speed of sound in air.
Hydrogen gas is filled in two identical bottles, A and B, at the same temperature. The mass of hydrogen in the two bottles is 12 gm and 48 gm respectively. In which bottle will sound travel faster? How many times be as fast as the other?
Helium gas is filled in two identical bottles A and B. The mass of the gas in the two bottles is 10 gm and 40 gm respectively. If the speed of sound is the same in both bottles, what conclusions will you draw?
The propagating disturbance that travels in a medium is called a ______.
The velocity of sound by a tuning fork frequency of 480 Hz is 340 ms Its wavelength is ______.
Numerical problems:
A Sound wave travels at a speed of 344 ms-1. If the wavelength is 1.5 cm, what is the frequency of the Wave? Will it be audible?
