Question

explain optical and acoustic grating​

Answer 1

Explanation:

Acoustic Grating. Principle: When ultrasonic waves are passed through a liquid, the density of the liquid varies layer by layer due to the variation in pressure and hence the liquid will act as a diffraction grating, so called acoustic grating.

Answer 2

Answer:

Acoustic Grating. Principle: When ultrasonic waves are passed through a liquid, the density of the liquid varies layer by layer due to the variation in pressure and hence the liquid will act as a diffraction grating, so called acoustic grating.