Question

a) please .. Describe the anatomy of a wave with respect to its amplitude, wavelength, frequency and time period with the help pf a suitable diagram.

b) Explain Doppler effect in detail with pictorial elaboration.

Answer 1

Vvelocity u sound aapent freguenly Observer obserre Sowrce Dact- attual freguecy Vo=veloaty obsenver Datt Vapp Sowrce TF betwcen souYce olserveh different fm te actual freuen by «f SOurce Vapp i's +fere is velative motion Doppler's sffet This is cal led

Wave lengte frequency To completely desoibe a ave on a string Cand motiont any element alony its leng, we need function te atgives te shabe sf tRe enve 7- trensverse disp of any 4ing element as a Hhe pasition of element along tee staing ascillating term 3 Sin CK-t) Phese ayutar freg engulai Pasitonm fn hof time tf amitude thme Crve no Tt can be used to fincl te.e disp all elcments f the sthin fn oftime wave at Chy Siven time maves alo Thus it can telt u tae shape dring how that shape changes te majnitude sf the Amplitude (m) of is wave max-clisp f he elements from terx equ positions as the wav passes ter tAem Wave leng te, 2 f the uave is te dlistance (1l to wave length dif. of wave's tavel) blo apetitions f the shabe t tBe wave (o wave shabe ) al to Y CXO) =Ym Sin Kx By def" disp s sme at bote ends f this wave leng te Non Sin Ki Ym Sin (K +) Ym Sin (ki + Ka) Κλ= Ατ K Gng. Wave hd of Ware

certain 3aph f olisp y equ position along the N time t at q Time Period! taken to bexo Y(ot) Ym Sin (-t) Ym Period T f wave is de fined as time ACAL Gny strimg element takes to move full osilletion Ym Sin oti= Ym Sinalti+ T) -Ym Sin Cti (wtit T) 4IS TW- 2 T frep f wave is defined as ho f ber unittime