speed in gas medium is root(p/)

assuming the pressure to be constant..calculate gamma by 1+2/f(f=5 and 3 resp)

and  = 14/22.4 and 4/22.4 resp.

taking ration you get root3/25..

Q) A wire of density 9000kg/m^3 is stretched between two clamps 1m apart and it's length increases by 0.05cm. Calculate the frequency of the fundamental transverse vibration in the wire.

(Y=9*10^10 N/m^2)

 

 

the veloty of a WAVE is (T/).. this means that the waves travelling in two wires of same material and under same tension should be same.

But the HCV says that it also depends on the area of cross-section can anyone explain how?

P₂____S₁_____P₃_____S₂______P₁

 

it is given that s1p3=s2p3=1

 

Q)Two sources S1 and S2 separated by 2m, vibrate according to the equation y1=0.03(sin pit) and y2=0.02(sin pit), where yi,y2,t, are in SI units. They send out waves of equal velocity 1.5m/s. Calculate the amplitude of resultant motion of the partilce co-linear with S1,S2 and located at a point

(a) p1 to the right of s2

(b) p2 to th left of s1

(c) p3 in the middle of s1 and s3

 

plz show all steps with explaination!

Q) The amplitude of a wave disturbance propagating in the positive x direction is given by y=1/1+x² at t=0 and y=1/2-2x+x² at t=1 sec. where x and y are in meters . Find the velocity of wave propagation.

 

heat recieved by the earth per unit time can be written as

(Intensity of radiation of the earth/4pid²)(piR_e²)-------(1)

where d is the distance of the earth from the sun so 4pid² are of the spherical structure formed by the radiations and piRe² is the area of the earth facing the sun it would be a circle!

note that the intensity has the unit J/m²/sec when multiplied by m² we get the unit of Energy per unit time which according to the Stefan's Law is

sigmaAT⁴----(2)

 

equate (i) and (ii)

you will get Td^1/2 - const.

 

so, the answer should be (C)

thanks