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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Physics (PH)
What sign do we use for wt kx ?
V2 u/OALe m o Stwmg haA Amp 2 m Haellimp ym tx wih pl Mavellln tvewih puc 128 / 4 5 mpat wowu. pt m 4m ngth DA the ums ww4 t m Hm longth V V T div XL 0625 Jucs V= lo 128 peol . 129 A 0 8 50 a m wt +Kx K- 2n 485 y 002 m C 27 (1b0t + 1.2Sx) ak whth pud 6 towmd VaJT becomi douhu 1ot ar 24° i
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Prashant kumar![best-answer]()
In the given question the wave is going to +ive x direction. therefore the sign b/w wt and kx should be - i.e. (wt-kx) not (wt+kx). To check your answer try to find velocity form these quantities from first you will find positive value of velocity and from second you will find negative value of velocity. positive value of velocity means positive x-dirn going wave and negative velocity means wave is travelling to negative dirn of x.