Advertisements
Advertisements
प्रश्न
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a city
Advertisements
उत्तर
The person would hear a lot of noise in heavy city traffic. Hence, he can conclude that he was in a city.
APPEARS IN
संबंधित प्रश्न
A sound wave travels at a speed of 339 m s−1. If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
A boy fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 3 s after seeing its smoke. Find the speed of sound.
A boy on a hill A fires a gun. The other boy on hill B hears the sound after 4 s. If the speed of sound is 330 m s-1, find the distance between the two hills.
What is the time-period of a tuning fork whose frequency is 200 Hz?
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 the atmosphere of a planet is 500 ms–1. The minimum distance between the sources of sound and the obstacle to hear the echo should be
Air temperature in the Rajasthan desert can reach 46°C. What is the velocity of sound in air at that temperature? (V0= 331 ms–1)
The speed of sound in a gaseous medium depends on ______.
