Question

Write two properties of ultrasound.

Answer 1

Answer:

The following are the main properties of ultrasonic waves:

Their velocity remains constant in homogeneous media. These waves can weld certain plastics, metals etc. These can produce vibrations in low viscosity liquids. The ultrasonic waves are reflected and refracted just like light waves.

Answer 2

Answer:

there range is above 20000Hz

it is produced by animals like bats etc to detect their preys

it is also used in medical as well as non medical feild