The intensity of sound decreases four times as the distance between the ear and sound source is doubled because the intensity of sound is inversely proportional to the square of the distance between the...
Ultrasonic waves The ultrasonic waves are used to detect the presence of flaws in the form of cracks, blowholes, porosity in metallic pipes as those used in conveying the natural gas or parts of...
Medical diagnosis Ultrasonic waves are used nowadays in many medical investigations and laboratory tests such as detecting the sex of the embryo and his health state, This process depends on the ability of different...
