Advertisements
Advertisements
प्रश्न
A bat emits an ultrasonic sound of frequency 0.25 MHz. Calculate the time in which one vibration is completed.
Advertisements
उत्तर
Frequency of ultrasound = ƒ = 0.25 MHz
ƒ = 0.25 × 106 Hz
Time in which one vibration is completed = T = `1/"f"`
T = `1/(0.25 xx 10^6) = 100/25 xx 10^-6`
T = 4 × 10-6s
APPEARS IN
संबंधित प्रश्न
Guess which sound has a higher pitch: guitar or car horn?
List the measures that you will take when designing a sound-proof room.
The speed of sound in air at 0°C is nearly :
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
How does the speed of sound depend on (i) Amplitude, and (ii) Wavelength?
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.
Unwanted sounds are called ______.
In which medium the speed of the sound is maximum?
