What is the difference between loudness and intensity.

Important questions of this chapter sound

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 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

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?

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...???

What is 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?

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?

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?????????

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?

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

 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?

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

 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

WHAT KIND OF ENERGY TRANSFORMATION TAKES PLACE IN THE FOLLOWING DEVICES

explain how bats use ultrasound to catch the prey