Are the light waves transverse or longitudinal.

Given below are some functions of x and t to represent the displacement (transversal or longitudinal) of an elastic wave. Identify the waves . y = 2sqrt(x - vt)

Given below are some functions of x and t to represent the displacement (transversal or longitudinal) of an elastic wave. Identify the waves . y = cos x sin t + cos 2 x sin 2 t

Given below are some functions of x and t to represent the displacement (transversal or longitudinal) of an elastic wave. Identify the waves . y = 2 cos (3x) sin (10t)

Given below are some functions of x and t to represent the displacement (transversal or longitudinal) of an elastic wave. Identify the waves . y = 3 sin (5x -0 . 5 t) + 4 cos (5 x - 0 . 5 t)

Does interference of light give any information about the nature of light waves? (whether it is longitudinal or tranverse)