नीचे किसी प्रत्यास्थ तरंग (अनुप्रस्थ अथवा अनुदैर्ध्य ) के विस्थापन को निरूपित करने वाले x तथा t के फलन दिए गए हैं । यह बताइए की इनमे से कौन (i) प्रगामी तरंग को, (ii) अप्रगामी तरंग को, (iii) इनमे से किसी भी तरंग को नहीं निरूपित करता हैं
(a) `y=2cos(3x)sin10t`
(b) `y=2sqrt(x-vt)`
(c) `y=3sin(5x-0.5t)+4cos(5x-0.5t)`
(d) `y=cosxsint+cos2xsin2t`

The amplitude of a wave represented by the equation y=3sin(5x-0.5t)+4cos(5x-0.5t) , is

The amplitude of a wave represented by the equation y=3sin(5x-0.5t)+4cos(5x-0.5t) , is

Given below are some functions of x and 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? (a) y=2cos(3x)sin(10t) (b) y=2sqrt(x-vt) (c) y=3sin(5x=-0.5t)+4cos(5x-0.5t) (d) y=cosx sint +cos2x sin2t

Given below are some functions of x and 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? (a) y=2cos(3x)sin(10t) (b) y=2sqrt(x-vt) (c) y=3sin(5x-0.5t)+4cos(5x-0.5t) (d) y=cosx sint +cos2x sin2t

Given below are some functions of x and 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? (a) y=2cos(3x)sin(10t) (b) y=2sqrt(x-vt) (c) y=3sin(5x-0.5t)+4cos(5x-0.5t) (d) y=cosx sint +cos2x sin2t

x= sin^3t/sqrt x cos2t , y= cos^3t/ sqrt x cos2t .

Given below are some functions of x and t to represent the displacement (transverse or longitudinal) of an elastic wave. Some which of these represent (i) a travelling wave, (ii) a stationary wave or (iii) none at all: (a) y = 2 cos (3 x) sin (10 t) (b) y = 2 sqrt(x - v t) (c ) y = 3 sin (5 x - 0.5 t) + 4 cos(5 x - 0.5 t) (d) y = cos x sin t + cos 2x sin 2t