Waves Test - 10...

The necessary condition for an interference by two sources of light is that: 

Four different independent waves are represented by
a) $$ y_{1}=a_{1} \sin  \omega  _{1}t$$
b) $$ y_{2}=a_{2} \sin \omega  _{2}t$$
c) $$y_{3}=a_{3} \sin \omega  _{3}t$$
d) $$y_{4}=a_{4} \sin (\omega _{4} t + \pi  /3)$$
The sustained interference is possible due to

The phase difference between the particle at one compression and another particle in third compression is

When viewed in white light, soap bubble show colors because of

If a wave completes 24 cycles in 0.8 s, then frequency of the wave is

For superposition of two waves, which of the following is correct

If the frequency of a wave is doubled, then its wavelength

The interference phenomenon can take place

The disturbance caused in a medium is called

Speed of sound wave in a given medium is