MCQ
What is the rate of change of rate of change of displacement of a body?
- AVelocity
- ✓Acceleration
- CForce
- DJerk
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$y = a\sin (kx + \omega t)$ ......$(1)$
$y = a\sin (\omega t - kx)$ ......$(2)$
$y = a\cos (kx + \omega t)$ ......$(3)$
$y = a\cos (\omega t - kx)$ ......$(4)$
emitted by four different sources ${S_1},\,{S_2},\,{S_3}$ and ${S_4}$ respectively, interference phenomena would be observed in space under appropriate conditions when
Give your answer to the nearest integer in $km/s$