Advertisements
Advertisements
Question
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
Advertisements
Solution
(i) Wavelength (λ) = Distance between two consecutive crests
= 1.0 - 0.2 = 0.8 m
(ii) Frequency (f) = `"v"/lambda`
Wavelength (v) = 160ms-1 ...(given)
∴ f = `160/0.8 = 200` Hz
(iii) Amplitude = Maximum displacement from mean position = 10 cm
APPEARS IN
RELATED QUESTIONS
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
Answer the following question :
Can sound travel in vacuum?
An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s-1, find the time when B will hear the sound after firing by A.
A sound wave of wavelength 1/3 m has a frequency 996 Hz. Keeping the medium same, if frequency changes to 1328 Hz. Calculate
- velcoity of sound
- new wavelength.
The sound of which of the following frequency is audible to us?
2 Hz, 1000 Hz, 200 kHz, 8 MHz
Through which medium sound travels faster, iron or water? Give reason.
Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then ______.
