Given below are some functions of xand t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a travelling wave, (ii) a stationary wave or (iii) none at all: y = cos x sin t+cos 2x sin 2t.

Given below are some functions of xand t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a travelling wave, (ii) a stationary wave or (iii) none at all: y = 2cos (3x)sin(10t)

Given below are some functions of xand t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a travelling wave, (ii) a stationary wave or (iii) none at all: y = 2sqrt(x-vt) .

Given below are some functions of xand t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a travelling wave, (ii) a stationary wave or (iii) none at all: y = 3 sin (5x-0.5t)+4cos(5x-0.5t)

Given below are some functions of x and t to represent the displacement of an elastic wave. y= 5 cos (4x) sin (20t) State which of these represent (a) a travelling wave along (−x) direction (b) a stationary wave (c) beats (c) a travelling wave along (+x) direction. Give reasons for the answers.

Given below are some functions of x and t to represent the displacement of an elastic wave. y=100cos(100pit+0.5x) State which of these represent a travelling wave along -x direction a stationary wave beats a travelling wave along +_(x) directions. Given reason for your answers.

Given below are some functions of x and t to represent the displacement of an elastic wave. y=10cos[(252-250)pit]cos[(252+250)pit]

Given below are some functions of x and t to represent the displacement of an elastic wave. y=4 cos (5x-t/2)+3 cos (5x-t/2). State which of these represent (a) a travelling wave along (−x) direction (b) a stationary wave (c) beats (c) a travelling wave along (+x) direction. Give reasons for the answers.

Find dy/dx at t = pi/4 , when x = 2 cos 2t and y = 2 sin t - sin 2t

If x = sin t, y = cos t, find dy/dx

in a wave motion, y= a (sin9k x- omega t), y can represent