Advertisements
Advertisements
प्रश्न
The sonic boom of an aircraft has a time period of 0.00005s. Calculate the frequency of sound produced.
उत्तर
Time period of sonic boom = T = 0.00005 s
Frequency of sound = f =?
f = `1/"T" = 1/0.00005`
f = `100000/5 = 20000` Hz
∴ f = 200 KHz
APPEARS IN
संबंधित प्रश्न
A microphone is connected to the Y-input of a C.R.O Three different sounds are made in turn in front of the microphone. Their traces (a), (b) and (c) produces on the screen are shown in following figure.
![]() |
![]() |
![]() |
(a) | (b) | (c) |
- Which trace is due to the loudest sound? Give reason for your answer.
- Which trace is due for the sound with the lowest pitch? Explain your answer.
Complete the following sentence:
Infrasonic sound is of frequency ______________.
Complete the following sentence:
Elephants produce ____________sound.
A man can hear the sound of frequency :
What do you understand by the term infrasonic vibrations?
What do you understand by the term ultrasonic vibrations?
Ultraviolet radiation has a wavelength of 300Å. If the velocity of the electromagnetic wave is 3 × 108 ms-1. Calculate:
- frequency
- time period.
What are ultrasonic? State and explain two applications of ultrasounds.
State the properties of ultrasound that make it useful.
The range of audible frequency for the human ear is