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What is the difference between loudness and intensity.
Important questions of this chapter sound
what is the difference between Echo And Reverberation ?
Why does sound travel faster in Hydrogen than Oxygen?
What r the factors on which the speed of sound depends? Pls ans any1.. experts... quickly..
a person is listening to a tone of 500 Hz sitting at a distance of 450m from the source of the sound . What is the time interval between successive compressions from the source ?
why we cannot heard echo in small room?
When a wave travels through a medium ____ .
(A) Particles are transferred from one place to another
(B) Energy is transferred in a periodic manner
(C) Energy is transferred at a constant speed
(D) None of the above statements are applicable
why are sound waves called mechanical waves?
DIFFERENCE BETWEEN INTENSITY AND LOUDNESS OF SOUND?/
Which part of the ear contains actual hearing organ?
The blood pressure in humans is greater at the feet than at the brain. Why?
a tuning fork has a number 256 marked on it. what does it signify?
Explain the working and applications of sonar.
what are uses of infrasonic sound
a stone is dropped from the top of a tower 500m high into a pond of water at the base of the tower . when is the splash heard ? g = 10m/s2 and speed of sound = 340m/s
A person has a hearing range from 20Hz to 20KHz. what are the typical wavelength of sound waves in air corresponding to these two frequencies?(Speed of sound =344m/s)?
why are the ceilings of concert halls made curved?
why sound wave are called as longitudinal wave?
a sound wave has a frequency of 2KHz and wavelength 35 cm.how long it will take to travel 1.5km?
what are the si unit of amplitude,freqency&wavelength
what are the avantages and disadvantages of echo and reverberation?
what is the functioning of human ear ?
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 .
The roof and walls of the auditorium are generally covered with sound absorbent materials like compressed fibreboard or draperies. Why is it so?(
I want to make a SUPW project please give me some simple ideas.
write all formula's in chapter sound ... and defines...???
a sound wave causes the density at a place in air to oscillate 600times in 30s. find the time period and frequency of the sound wave.
plz tel me hw 2 do dis.
reverberation? How can it be reduced?
A solid weighs 50 gf in air and 44 gf in when completely immersed in water. Calculate(i) the upthrust (ii) volume of the solid and (iii) the relative density of the solid
establish the relationship between speed of sound, its wavelength and frequency?
state the laws of reflection of sound .explain three application based on these laws.
Define echo?Give its two applications.
Name three devices which work on the reflection of sound
list three characteristics of sound waves. state the factors on which each of these characteristics depend...
what is an echo? what are the two conditions required to hear an echo?
describe an experiment to show that sound cannot pass through vacuum?
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
on what factor does the quality of sound depend?
how is echo formed?????????
difference between reverbration and echo.
WHAT KIND OF ENERGY TRANSFORMATION TAKES PLACE IN THE FOLLOWING DEVICES
Why are sound waves known as mechanical waves?
what is SONAR ? exxplain the working of sonar . write one use of SONAR .
The frequency of a source of sound is 100 Hz . How many times does it vibrate in a minute?
Why is it that children under the age of 5 can hear sounds upto 25 kHz but adults cannot do so?
What are the uses of multiple reflection of sound ?
on what factor does the quality of a sound depend?
Explain how a human ear works
A piece of wax weighs 18.80 g wt. in air. A piece of metal is found to weigh 17.03 g wt.
in water. It is tied to the wax and both together weigh 15.23 g wt. in water. Find therelative density of wax?
Why bryophytes and pteridophytes grow in moist and shady places? plzz tel me anyone
one side of a ripple tank ABCD is raised slightly, and a ripple tank started at P by a finger, After 1 secnd the shape of the ripple as shown.
a) why is it not circular?
b) which side of the tank has been raiseD?
Help me please. I have quiz tomorrow
Why is the speed of sound more in steel than in water or air?
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.
calculate the number of aluminium atoms present in 51g of aluminium oxide Al2o3
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 source of sound produces sound waves of wavelength 1m in air that travel at 340m/s in air.These waves on entering into water travel at 850m/s.Determine the frequency and wavelength of these waves in water.
Does the sound of a bomb explosion travel faster than the sound of a humming bee?
A stone is dropped into a well and its splash is heard at the mouth of the well after an interval of 1.45 s . find the depth of the well. given that the velocity of sound in air is equal to 332 m/s .
a person standing between two vertical cliffs and 640m away from nearest cliff shouted he heard first echo after 4 sec and second echo 3 sec later. calculate
explain how bats use ultrasound to catch the prey
is the sum of angle of reflection and incidence always 90 degrees??????
property determines (a) loudness, (b) pitch?
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