When two light waves meet at a palce

When two light waves interfere at same point to produce darkness, what becomes of the light energy?

The path difference between two interfering light waves meeting at a point on the screen is ((87)/(2))lamda . The band obtained at that point is

Wavelengths of two sound waves in air are 81/174 m and 81/175 m. When these waves meet at a point simultaneously, they produce 4 beats per second. Calculate the velocity of sound in air.

Two sources of light having intensities I_(1) and 4I_(1) emit the light waves. The phase difference between the light waves interfering at a point is 90^(@) . The intenity 'I' of light at that point, is

The path difference between two waves meeting at a point is (11//4)lamda . The phase difference between the two waves is…

The destructive interference at a certain point is produced when two coherent light waves superpose at that point with a phase difference of

In young double slit experiment , when two light waves form third minimum, they have

In Young's double slit experiment, when two light waves form third minimum, they have