Confusing physics wave question?

Question

y (x, t) = 5 * sin (3x) * sin (5t)
where y and x are perpendicular directions and t is time. This equation could describe (check all that apply):-

1. None
2.A periodic wave
3.A longitudinal wave
4.A standing wave
5.A transverse wave

Answer 1

Transwerse wave are the waves in which particles of vibration are perpendicular to the wave direction.

Answer 2

think of one wave interior the rope as a element of this rope shifting up or down. If 2 waves are approximately to collide and the 1st if occurring and the 2nd up. think of them as bodies, because of the fact the rope has weight then the shifting area of it arising a wave has a momentum. the two waves will cancel one yet another (keep in mind the conservation of skill regulations), because of the fact the vectors of the two momentums are opposite and have comparable fee (anti-node). comparable element in the event that they have been interior the comparable course then they could upload up (node).

Answer 3

i think it describes longitudinal progressive wave