Waves Test - 47...

Two waves of same amplitude and frequency with a phase difference of $$\pi/2$$ and travelling in same direction are superimposed each other, the maximum amplitude of the resultant wave is

Principle of superposition can be applied to

A travelling wave has a velocity of 400 m/s and has a wavelength of 0.5 m. What is the phase difference between two points in the wave that are 1.25 milli secs apart

The displacement of a particle varies according to the relation $$x= 4 (cos \pi t + sin \pi t)$$. The amplitude of the particle is 

A progressive wave of wavelength 5 cm moves along +X axis. What is the phase difference between two points on the wave separated by a distance of 3 cm at any instant

If the phase difference between two component waves of different amplitudes is $$2\pi$$, their resultant amplitude will become

The maximum potential energy / length increases with:

The refracted and the incident pulses for a wave travelling in a string have an amplitude ratio of 1:2. The ratio of their phases will be 

Reflection at a free boundary implies

The initial phase of a pulse travelling on a string is $$\pi/3$$. The reflected pulse has a phase of