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1 hz = how many decibels?
what is the relationship between frequency and time period
Spectators watching a game of cricket hear the sound, a spilt of second after a batsman make stroke.
give 15 musical instruments with their names and their vibrating parts?
Which of the following voices is likely to have maximum frequency?
give 4 advantages and disadvantages of loudspeakers?
What is the difference between Noise and Music?
wat is d aim , colclusion n observation of jaltarang ??
some steps to reduce noise pollution?
a spoon can sound like a bell. No, this is not riddle. it's science. prove it?
Speech is much better developed in humans than the other animals. This is MAINLY due to which organ being better developed in humans?
Explain the principle on which Jaltarang works.
5 differences between loudness and pitch
Why the voice of men, women and children are different?
Why do we not hear echoes in our ordinary surrounding?
write a short note on noise pollution and i need it fast please
what are the vibrating part of following objects
a.harmonium b.tabla c.flute d. guitar e.ghatam f.manjira g.noot h.kartal i.sitar j.striking a pan
What is the difference between Vibration and Oscillation ?
How do loudness and pitch of sound depend on amplitude and frequency respectively?
Which of the following voices is likely to have minimum frequency.
(a) A man (b) A baby girl (c) A baby boy (d) A woman
1. In which medium speed of sound is maximum an din which minimum ?
2. A pendulum makes 16 oscillations in 2 seconds . What is the frequency of the pendulum ?
How does a jaltarang work? I searched on the net and it said that the shorter the air coloumn above the water, the faster it vibrates, thus producing a higher pitch. Why is this so? I didn't understand at all and I really need help.
What are longitudinal and transverse wave? and is Sound a longitudinal wave?
A man stationed between two parallel cliffs fires a gun . He hears the first echo after 1.5s and the next after 2.5s. What is the distance between the cliffs and when does he hear the third echo? Take the speed of sound in air as 340m/s .
a spoon can sound like a bell prove it
why is a lion's roar greater than a birds chirp??
What is amplitude,frequency and time period?
if the thickness of vibrating string is increased,its pitch-------------
what is amptitude
which characteristic of a vibrating body determines the-
(b)Pitch of the sound produced by it?
identify the sources of noise pollution in your locality. Discuss with your parents, friends and neighbours. Suggest how to control noise pollution. Prepare a brief report and present it in the class.
a baby recognizes her mother by her voice .name the characteristic of sound involved .define it
suppose you are going in a jet plane,and one of the windows breaks due to an accident.what problems do you think you will face?
How sound is produced by dholak?
name any 7 musical instruments and their vibrating parts
What is the minimum distance in air required from sound reflecting surface to hear an echo at 20degree Celsius
what is the SI unit of vibration ?
compare the transmission of sound in solids , liquids and gases?
Which parts of jal tarang vibrates
give two uses of ultrasonic vibrations in industry .
How can you say that sound is a form of energy? Explain with examples.
any 5 difference between audible and inaudible sound plz do it quick.
what is 1 hertz
What is audible and inaudible sounds
an explosion occurs on the moon.will it be
b)heard on the earth instantly or after sometime?
In the game of hide and seek how the blind folded person guess ho is the nearest person to him
If we want to hear a train approaching from far away , why it is more convenient to put th ear to the track ?
What are ultrasonic sounds? Write some applications of ultrasonic waves.
1. What are transverse and longitudinal waves? Explain with suitable examples.
2. What is a progressive wave? What is a plane progressive harmonic wave? Establish
the displacement relation for harmonic wave travelling along the positive direction of x-
3. State and explain the principle of superposition of waves.
4. What are stationary waves? What is the necessary condition for the formation of
5. Obtain an expression for a stationary wave formed by two sinusoidal waves travelling
along the same path in opposite directions and obtain the positions of nodes and
6. Prove analytically that in the case of an open organ pipe of length L, the frequencies of
vibrating air column are given by v= n(u/2L), where n is an integer.
7. What are beats? What is the essential condition for the formation of beats?
8. Derive an expression for the apparent frequency of the sound, when the observer
moves towards a stationary source of sound. Hence write the expression for the"
apparent frequency when the observer moves away from the stationary source.
9.Obtain an expression for the observed frequency of the sound produced by a source
when both observer and source are in motion and the medium at rest.
10. Define the term wave motion.
11 . What are mechanical waves?
12. Which types of waves do not require a material medium for their propagation?"
13.Amongst solids, liquids and gases, in which type of media, transverse wave motion is
14. Among solids, liquids and gases, in which type of media, longitudinal wave motion can
15 How far the consecutive nodes are separated from each other?
how do human beings produce sound
What is the difference between loudness and shrillness?
what are two important properties of sound
Write an activity to prove that sound needs a medium for propogation .
I searched it on the study material but realistic activities are needed inculing
2) Materials Required
4) Observation / Conclusion
Thanks in adance and don't forget to wish me 'All The Best' for the exam . Tomorrow it will take place .
what is sound
1 give reasons
A) Cinema halls and auditoriums are carpeted and their walls are coated with rough material
b) Echoes are not formed in our classrooms
what are disadvantages of sound pollution
on which principle is the indian musical instrument 'jal tarang' based ???
somebody answer fast ... i have my exam 2morrow...
How to make ektara at home
what is sound ?
define sound .
what would happens to the sound produced when you strike a glass as you increase the level of water in it?
difference between audible and inaudible sound
WHAT IS THE DIFFERENCE BETWEEN PRODUCTION AND PERCEPTION OF SOUND?
explain how noise pollution is harmful to human beings?
what is noise pollution
what is the difference between time period and frequency
describe an experiment to show that sound can travel through liquids.
what is sound?
If the amplitude is increased by 3 times , by how much does the loudness increase?
if you play a musical instrument,bring it to the class and demonstrate how you play it
time taken to complete one oscillation is called
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