how many vibrations will a tuning fork of frequency 280 hz will complete during the time sound travels forward in air by 18 cm.speed of sound in air be 336 m/sec
how is echo formed?????????
The roof and walls of the auditorium are generally covered with sound absorbent materials like compressed fibreboard or draperies. Why is it so?(
Why are sound waves known as mechanical waves?
The frequency of a source of sound is 100 Hz . How many times does it vibrate in a minute?
Write a short note on reverberation and echo.
What are the uses of multiple reflection of sound ?
on what factor does the quality of a sound depend?
why would it be futile to attempt to detect sounds from other planets, even given the very best in audio detectors?
Explain how a human ear works
Why is it that children under the age of 5 can hear sounds upto 25 kHz but adults cannot do so?
Why bryophytes and pteridophytes grow in moist and shady places? plzz tel me anyone
Name three devices which work on the reflection of sound
A simple pendulum is vibrating in an evacuated chamber. It will oscillate with a) constant amplitude b) decreasing amplitude c) increasing amplitude d) none of these
A simple pendulum is vibrating in an evacuated chamber. It will oscillate with
a) constant amplitude b) decreasing amplitude c) increasing amplitude
d) none of these
a source of sound produces 20 compressions and 20 rarefractions in 0.2 seconds.the distance between a compression and rarefaction is 50cm . find the wavelength,frequency and time period of the wave.
please do answer it fast cuz tommorow is my finals.
A slinky 5m long is tie to a hook in the wall & its other end is held tightly. It is then pulled in the direction opposite to the direction of the wall & released suddenly.
The disturbance created on the slinky are:
Transverse waves, Longitudinal waves, Transverse pulse, Longitudinal pulse
working model for sound as project. can suggest?
A man standing between two parallel cliffs and fires a gun and hears two successive echoes after 4 second and 6 second the distance between the cliffs is (Speed of sound 330 ms-1)
(a) 1600 m (b) 1650 cm (c) 1650 m (d)1590 m
A human heart beats 75 times in a minute.Calculate its frequency
A stone is dropped into a well, 44.1 m deep. The sound of the splash is heard 3.13 s after the stone is dropped. Find the velocity os sound in air .
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