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...
Echo in locating surfaces is an important application of the reflection of sound. When a sound wave reaches a surface or barrier, part of the sound energy can be reflected toward its source. By...
Powerful Uses of Concave Mirrors and Convex Mirrors in Daily Life 2026
September 21, 2015
Powerful Uses of Concave Mirrors and Convex Mirrors in Daily Life 2026
September 21, 2015
