HI GUYS ...
CAN SOMEBODY PLEASE GIVE ME ALL FORMULAS FOR SOUND ..(ONLY RELEVANT TO CLASS 8)
40 POINTS FOR GRAB.
#NOSPAM
KunalTheGreat:
Jishnu bhaiya include formula or lambda and "NU"
okh
;)
what is NU ?
The frequency is often given the name "nu", a Greek letter whch looks a lot like a "v". Planck's constant is usually called "h". Its value is about 6.626*10^-34 Joules/ Hz. A Joule is a unit of energy, and a Hertz is a unit of frequency, so when you multiply a frequency by h you get an energy.
got it?
E = h nu where h = plank's constant ...thats all i know
ohk.....
if u know then why u asked
and how my answer is wrong
Answers
Answered by
14
Formulas of sound :
(i) Echo
Speed of echo = ( 2 × distance between surface and source ) / time
(ii) V = f λ
where V = velocity of wave ,
f = frequency of sound wave ,
λ = wavelength .
(iii) f = 1 / t
where f = frequency of wave ,
t = time period .
(iv) E = h nu
where h = Plank's constant
E = energy of wave .
(v) f = √T/ 2 l ( π r² d )
f = frequency of stretched string
l = length
d = density
r = radius
T= time period .
Note that this formula is for stretched string only.
Hope it helps !
thanks a lot!
welcome :-)
Answered by
2
Explanation:
In this article, we will discuss sound waves and the speed of sound formula.
...
c = ( γ × P ρ ) \sqrt(\frac{\gamma \times P}{\rho}) ( ργ×P)
c Speed of sound
γ Specific heat ratio
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