Waves Test - 59...

Two waves whose intensity are same $$I$$ move towards a point $$P$$ in same phase, then the resultant intensity at point $$P$$ will be :

A particle performs SHM with amp $$A$$. Its speed is hetled when at $$\dfrac {2A}{3}$$ from equation. Two new amp is

Equation of progressive wave is given by $$y=a\sin \pi  { (\frac {t  }{  2}- \frac { x }{4  } ) } $$,where t is in seconds and x is in meter. Then the distance through which the wave moves in 4 seconds is (in meter)-

Two wave are represnted by the equations $$ y_1= a sin \omega t \ and \ y_2 = a cos \omega t $$ . the first wave :

Three coherent waves having amplitudes 12 mm, 6 mm and 4 mm arrive at a given point with successive phase difference of $$\frac{\pi}{2}$$. Then the amplitude of the resultant wave is:

The phase difference between two points separated 0.8 m in a wave of frequency 120 HZ is 0.5 $$\pi $$ the value velocity is

The displacement of a particle along the x axis is given by $$x=a{ sin }^{ 2 }\omega t.$$ The motion of the particle corresponds to

Displacement of particle along x-axis by $$x=a\sin^{2}{\omega t}$$. Its motion is SHM of frequency :

A particle is vibrating in simple harmonic motion with amplitude of $$4\ cm$$. At what displacement from the equilibrium position is its energy half potential and half kinetic? 

A particles starts its $$SHM$$ from mean position at $$t = 0$$. If its time period is $$T$$ and amplitude $$A$$. The distance travelled by the particle in the time from $$t = 0$$ to $$t = \dfrac{5T}{4} $$ is