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What is the difference between loudness and intensity.
name the health problem subsequent to a diaster
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 ?
differentiate between crest and trough with more than 3 points (
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 ?
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.
why we cannot heard echo in small room?
on what factor does the quality of sound depend?
why are sound waves called mechanical waves?
DIFFERENCE BETWEEN INTENSITY AND LOUDNESS OF SOUND?/
The blood pressure in humans is greater at the feet than at the brain. Why?
Explain the working and applications of sonar.
what are uses of infrasonic sound
The physical quantities that remain unchanged after reflection of a sound wave are:
Why is it so?
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
Name the type of energy possessed by a stretched rubber band.
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?
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
a sound wave has a frequency of 2KHz and wavelength 35 cm.how long it will take to travel 1.5km?
what is the frequency of a sound wave whose time period is 0.05 sec
what are the si unit of amplitude,freqency&wavelength
Why does sound become faint with distance?
what are the avantages and disadvantages of echo and reverberation?
a tuning fork produces 256 waves in 4 seconds. calculate the frequency of tuning fork.
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.
what is the difference between shrill and hoarse sound
write all formula's in chapter sound ... and defines...???
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?
WHAT KIND OF ENERGY TRANSFORMATION TAKES PLACE IN THE FOLLOWING DEVICES
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...
A source is producing 1500 sound waves in 3 sec. If the distance covered by rarefaction and compression be 68cm. find
c)velocity of sound wave
what is an echo? what are the two conditions required to hear an echo?
Why is the skin of a tabla tightened to produce shrill sounds?
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
how is echo formed?????????
how could you convince a small child that when you speak it is not necessary for air to travel from your mouth to the ear of a listener?
The roof and walls of the auditorium are generally covered with sound absorbent materials like compressed fibreboard or draperies. Why is it so?(
on what factor does frequency of a wave depends
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?
a student fixes two end of a rope to two rigid supports A and B placed at a distance of 7.5 m . He gives a transversal horizontal jerk to create a pulse in the rope which moves from A to B , B to A , again from A to B and B to A and so on . the movement he gives jerk to the rope his friend immediately starts the stopwatch . The pulse dies after completing three to and fro journeys from A to B and back . The pulse takes 1 min and 15 sec to complete its entire journey . What is the speed of the pulse moving on the rope ?
What are the uses of multiple reflection of sound ?
(i) 50 sound waves pass through a point in 0.1 s. If the distance between one compression and the subsequent rarefaction is 0.34 m, calculate (a) frequency (b) wavelength (c) wave velocity of the longitudinal wave in air.
(ii) Represent graphically by two separate diagrams in each case.
(a) Two sound waves having the same amplitude but different frequencies.
(b) Two sound waves having the same frequency but different amplitudes.
(c) Two sound waves having different amplitudes and also different wavelengths.
PLEASE ANSWER AS SOON AS U CAN!!!
on what factor does the quality of a sound depend?
Why does sound travel faster in Hydrogen than Oxygen?
Explain how a human ear works
Why bryophytes and pteridophytes grow in moist and shady places? plzz tel me anyone
Name three devices which work on the reflection of sound
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
Why do the thinner strings of a guitar give out shriller sound than the thicker strings?
A human heart beats 75 times in a minute.Calculate its frequency
The frequency of a source of sound is 200 Hz. calculate the number of times the source vibrate in 1 minute. also calculate the time period.
Does the sound of a bomb explosion travel faster than the sound of a humming bee?
List five ways of producing sound. Can you produce sound by scratching a rough surface such as the surface of a wall?
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
1. A violin and a flute are both played at the same time in an orchestra. Both sounds travel through the same medium and arrive at our ear at the same time. Both sounds travel at the same speed irrespective of source but the sounds we receive are different. What are the characteristics that differentiate the two sounds?
explain how bats use ultrasound to catch the prey
a tuning fork has a number 256 marked on it. what does it signify?
property determines (a) loudness, (b) pitch?
A wave pulse on a string moves a distance of 8 m in 0.05 secs. find the velocity of the pulse and the wavelenght of the wave on the string if its frequency is 200 hz
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