3q 2)intensity =Pave/A
have u got it for more information abt the derivation u can see in Resnick and Halliday (volume 1)Chapter 18
Very conceptual..........plzzzz reply as soon as possible.....
Q1 A source and observer both start moving simultaneously from origin,one along X axis and other along Y axis with speed of source equal to twice speed of observer.The graph between apparent frequency(n') observed by observer and time t would be???????????
(where n is frequency of source)
Q2For a wave displacement amplitude is 10-8m,density of air=1.3 kg m-3,velocity of sound in air is 340 m/s and frequency is 2000 Hz.Then calculate intensity of wave........
-
UP 0 DOWN 0 0 10
10 Answers
33for the first question i got a hint i dont know whether it is rite.
let ur frame of reference be the observer and u will find dat the source is moving away from u with a particular velocity
then app freq=vsoundorg freq/vsound-vsource
1yup write sankara then plzz move and find the second one.......keep the gud workkk.............
3mr.potter i have done the second pbm i think it is a formula.at this time i dont have the formula :P
3i think eureka u r expecting lot for the soln.this is the thing dat i can do
24thanx everyone for 2nd part.........the formula didn't strike me............
but plzzz hep in 1st part........
9for first grph will be srt line as
src moves away frm obs in a particular dir always
9by the way can someone tll me if its necessary to know the frmula for intensity of waves , till now for the last 10 yrs jee pap i cudnt even find a single prob in this area
21yeah!!!
as the source moves perp to observer..... Vs in the sum will reamin a const. only vel. of observer will change.....
then its easy... hope u got it!!!