Advertisements
Advertisements
प्रश्न
The thunder of cloud is heard 9.8 seconds later than the flash of lightning. If the speed of sound in air is 330 ms–1, what will be the height of the cloud?
Advertisements
उत्तर
Speed of sound in air v = 330 m/s
Time to hear thunder t = 9.8 s
∴ Height of the cloud = v × t
= 330 × 9.8
= 3234 m.
APPEARS IN
संबंधित प्रश्न
Write the approximate speed of sound 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
Which term is used to denote a speed greater than the speed of sound?
A sound signal of 128 vibrations per second has a wavelength of 2.7 m. Calculate the speed with which the wave travels.
The incidence of ______ in daily life shows that the velocity of sound is less than the velocity of light.
Why does the flash of lighting reach earlier than the sound of thunder?
Velocity of sound in a gaseous medium is 330 ms–1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is
When temperature increases the speed of sound ______.
The velocity of sound by a tuning fork frequency of 480 Hz is 340 ms Its wavelength is ______.
Numerical problems:
Two persons are at opposite ends of a steel rod. One strikes the end of the rod with a stone. Find the ratio of time taken by the sound wave in the air and in steel to reach the second person. (Sound of speed in steel = 5960 ms-1, Sound of speed in air = 344 ms-1).
