Select Board & Class
What is the difference between loudness and intensity.
Important questions of this chapter sound
1.what do you understand by 1u or 1amu.
2.why is a bell provided with a big outer case?
what is the difference between Echo And Reverberation ?
What r the factors on which the speed of sound depends? Pls ans any1.. experts... quickly..
Why is it that children under the age of 5 can hear sounds upto 25 kHz but adults cannot do so?
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
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 ?
differentiate between crest and trough with more than 3 points (
why we cannot heard echo in small room?
why are sound waves called mechanical waves?
The wavelength of sound emitted by a source is 1.7*10-2 m. Calculate the frequency of sound if the wave velocity is 343.4 m/s wave velocity.
DIFFERENCE BETWEEN INTENSITY AND LOUDNESS OF SOUND?/
on what factor does the quality of sound depend?
The blood pressure in humans is greater at the feet than at the brain. Why?
when we put our ear to a railway line we can hear the sound of an approaching train even when thr train even when the train is far off but its sound cannot be heard through the air why?
Explain the working and applications of sonar.
what are uses of infrasonic sound
WHAT KIND OF ENERGY TRANSFORMATION TAKES PLACE IN THE FOLLOWING DEVICES
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
what are the avantages and disadvantages of echo and reverberation?
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)?
describe an experiment to show that sound cannot pass through vacuum?
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
why would it be futile to attempt to detect sounds from other planets, even given the very best in audio detectors?
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 .
I want to make a SUPW project please give me some simple ideas.
write all formula's in chapter sound ... and defines...???
a man stands in between two high raised building & blows a whistle.He hears two successive echos after 0.4s & 1.6s.Calculate the distance between the building.speed of sound is 332m/s.
What is reverberation? How can it be reduced?
a bat in search of prey hears a echo after 0.15 seconds.how far is the prey from bat if the echo got reflected from it. speed of sound in air = 30 ms.
Please answer immediately : If the density of air at a point through which a sound wave is passing is maximum at an instant,th pressure at that point will be a) minimum b)same as density of air c)= to the atmosphere d) maximum
Please answer immediately : If the density of air at a point through which a sound wave is passing is maximum at an instant,th pressure at that point will be
a) minimum b)same as density of air c)= to the atmosphere d) maximum
establish the relationship between speed of sound, its wavelength and frequency?
help!!!
state the laws of reflection of sound .explain three application based on these laws.
Define echo?Give its two applications.
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?
How is sound produced? explain with the help of an example
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
name the particles which determine the mass of an atom
how is echo formed?????????
after emitting the, find how far is bat from obstacle and wave length of wave?
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?
a man standing 825 metres away from a cliff fires a gun. After how long will he hear the echo? speed of sound in air is 330 m/s
The frequency of a source of sound is 100 Hz . How many times does it vibrate in a minute?
What are the uses of multiple reflection of sound ?
Q. A road runs parallel to a verticle cliff at a distance of 495 meter. A car standing at point A blows the horn and driver of the car hears the echo after 3 sec. But a person standing at another point B on road hears the sound of horn twice within an interval of 2 sec. Find the distance between the car and the person?
on what factor does the quality of a sound depend?
a mass of 5kg is at a point A on a table .it is moved to a point 25cm away by applying a force of 20 N IN THE DIRECTION OF FORCE . WHAT IS THE WORK DONE BY GRAVITATIONAL FORCE , APPLIED FORCE, FRICTIONAL FORCE ?
Explain how a human ear works
Why is the skin of a tabla tightened to produce shrill sounds?
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 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.
what is vacuum/ explain why sound cannot travel through vacuum
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
Define the terms compression and rarefraction of wave?
A human heart beats 75 times in a minute.Calculate its frequency
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
Does the sound of a bomb explosion travel faster than the sound of a humming bee?
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
A solid object of mass 5 kg floats in a liquid . Calculate the buoyant force acting on the body.
is speed and frequency denoted by the same letter???????
explain how bats use ultrasound to catch the prey
Which wave property determines (a) loudness, (b) pitch?
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)
Syllabus
What is the difference between loudness and intensity.
Important questions of this chapter sound
1.what do you understand by 1u or 1amu.
2.why is a bell provided with a big outer case?
what is the difference between Echo And Reverberation ?
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Assertion (A): Transverse waves are not produced in liquids and gases.
Reason (R): Light waves are transverse waves.
What r the factors on which the speed of sound depends? Pls ans any1.. experts... quickly..
Why is it that children under the age of 5 can hear sounds upto 25 kHz but adults cannot do so?
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
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 ?
differentiate between crest and trough with more than 3 points (
why we cannot heard echo in small room?
why are sound waves called mechanical waves?
The wavelength of sound emitted by a source is 1.7*10-2 m. Calculate the frequency of sound if the wave velocity is 343.4 m/s wave velocity.
DIFFERENCE BETWEEN INTENSITY AND LOUDNESS OF SOUND?/
on what factor does the quality of sound depend?
The blood pressure in humans is greater at the feet than at the brain. Why?
when we put our ear to a railway line we can hear the sound of an approaching train even when thr train even when the train is far off but its sound cannot be heard through the air why?
Explain the working and applications of sonar.
what are uses of infrasonic sound
WHAT KIND OF ENERGY TRANSFORMATION TAKES PLACE IN THE FOLLOWING DEVICES
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
what are the avantages and disadvantages of echo and reverberation?
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)?
describe an experiment to show that sound cannot pass through vacuum?
why are the ceilings of concert halls made curved?
why sound wave are called as longitudinal wave?
1- amplitude of vibration for S is maximum 2-amplitude of vibration for R is maximum
3- amplitude of vibration for Q is maximum 4- amplitude of vibration for all is same
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
why would it be futile to attempt to detect sounds from other planets, even given the very best in audio detectors?
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 .
I want to make a SUPW project please give me some simple ideas.
write all formula's in chapter sound ... and defines...???
a man stands in between two high raised building & blows a whistle.He hears two successive echos after 0.4s & 1.6s.Calculate the distance between the building.speed of sound is 332m/s.
What is reverberation? How can it be reduced?
a bat in search of prey hears a echo after 0.15 seconds.how far is the prey from bat if the echo got reflected from it. speed of sound in air = 30 ms.
Please answer immediately : If the density of air at a point through which a sound wave is passing is maximum at an instant,th pressure at that point will be
a) minimum b)same as density of air c)= to the atmosphere d) maximum
establish the relationship between speed of sound, its wavelength and frequency?
help!!!
state the laws of reflection of sound .explain three application based on these laws.
Define echo?Give its two applications.
is correct ?
A) We can generate transverse and
longitudinal pulses in a slinky
B) We cannot generate both the above said
pulses in a slinky
C) Only transverse pulse can be generated
in a slinky
D) Only longitudinal pulse can be generated
in a slinky.
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?
How is sound produced? explain with the help of an example
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
name the particles which determine the mass of an atom
how is echo formed?????????
after emitting the, find how far is bat from obstacle and wave length of wave?
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?
a man standing 825 metres away from a cliff fires a gun. After how long will he hear the echo? speed of sound in air is 330 m/s
The frequency of a source of sound is 100 Hz . How many times does it vibrate in a minute?
a)intensity of sound falls
b) speed of sound falls
c)intensity of sound increases
d)speed of sound increases
EXPERTS PLEASE ANSWER THIS QUESTION.....
What are the uses of multiple reflection of sound ?
Q. A road runs parallel to a verticle cliff at a distance of 495 meter. A car standing at point A blows the horn and driver of the car hears the echo after 3 sec. But a person standing at another point B on road hears the sound of horn twice within an interval of 2 sec. Find the distance between the car and the person?
on what factor does the quality of a sound depend?
a mass of 5kg is at a point A on a table .it is moved to a point 25cm away by applying a force of 20 N IN THE DIRECTION OF FORCE . WHAT IS THE WORK DONE BY GRAVITATIONAL FORCE , APPLIED FORCE, FRICTIONAL FORCE ?
Explain how a human ear works
Why is the skin of a tabla tightened to produce shrill sounds?
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 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.
what is vacuum/ explain why sound cannot travel through vacuum
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
Define the terms compression and rarefraction of wave?
A human heart beats 75 times in a minute.Calculate its frequency
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
Does the sound of a bomb explosion travel faster than the sound of a humming bee?
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
A solid object of mass 5 kg floats in a liquid . Calculate the buoyant force acting on the body.
is speed and frequency denoted by the same letter???????
explain how bats use ultrasound to catch the prey
Which wave property determines (a) loudness, (b) pitch?