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What is the difference between loudness and intensity.
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.
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..
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?
Why does sound become faint with distance?
why are sound waves called mechanical waves?
describe an experiment to show that sound cannot pass through vacuum?
DIFFERENCE BETWEEN INTENSITY AND LOUDNESS OF SOUND?/
If the reflecting body is covered with loose cotton, the reflected sound will :
The blood pressure in humans is greater at the feet than at the brain. Why?
why would it be futile to attempt to detect sounds from other planets, even given the very best in audio detectors?
Explain the working and applications of sonar.
what are uses of infrasonic sound
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
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?
give five practical applications of reflection of sound
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...???
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
what is the difference between shrill and hoarse sound
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.
a sonic tape measure is used to measure the length of a room.it measures a time interval of 0.06 s between transmitting a sound pulse and recieving the echo .the speed if sound in air is 330 m/s.how far is the reflecting wall from the tape measure?????? explain step by step......
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?
a sound wave strikes a wall perpendicularly. wht is the angle of reflection of the sound wave ???????
a)900 b)00 c)450 d)300
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
The minimum distance for echo to be heard is 17.2 m.But is there a maximum distance for echo to be heard?
how is echo formed?????????
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?
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?
on what factor does frequency of a wave depends
What are the uses of multiple reflection of sound ?
How do the following parameters change (a) compressions, (b) rarefaction when a longitudinal wave prpogates in the air ?
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
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.
working model for sound as project. can suggest?
WHAT KIND OF ENERGY TRANSFORMATION TAKES PLACE IN THE FOLLOWING DEVICES
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 is placed at one end of an iron bar 2km long and two sounds are heard at the other end at an interval of 5.6 s. If the velocity of sound in air is 330m/s.
1. the time taken by sound to travel 2km in iron is
(A) 0.46s (B) 0.16 s
2. Velocity of sound in iron is
(A) 2348m/s (B)4348m/s
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
Why is it that children under the age of 5 can hear sounds upto 25 kHz but adults cannot do so?
explain how bats use ultrasound to catch the prey
property determines (a) loudness, (b) pitch?
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