Advertisements
Advertisements
प्रश्न
Two observers are stationed in two boats 4.5 km apart. A sound signal sent by one, under water, reaches the other after 3 seconds. What is the speed of sound in the water?
उत्तर
Distance of boats d = 4.5 × 103 m
= 4500 m.
Time t = 3 s
Speed of sound in water = `"d"/"t"` = `4500/3`
= 1500 m/s
APPEARS IN
संबंधित प्रश्न
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
A bat emits an ultrasonic sound of frequency 0.25 MHz. Calculate the time in which one vibration is completed.
How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
Number of vibrations produced in one second is ______.
Waves created by Earth Quake are Infrasonic.
What is a longitudinal wave?
Which of the following statements are correct?
- Sound is produced by vibrations.
- Sound requires a medium for propagation.
- Light and sound both require a medium for propagation.
- Sound travels slower than light.
Name two musical instruments which produce sound by vibrating strings.
