1. The system of units: A set of fundamental and derived units is called system of units. 2. Ampere: One ampere is the unit of current equal to a flow of one coulomb per second. 3. Mole: The gram atomic...
1. Echo is a single reflection of a sound wave off a surface. Reverberation is the sound or the pattern created by the superposition of such echoes. 2. An echo can be heard only when the distance between...
In our everyday life, we often come across remarks like, “It will probably rain tonight” or “It is unlikely that India will beat Australia in the ODI series”. What do these statements...
* Rotation is nothing but rotating an object through an angle of 90 degrees, 180 degrees, 270 degrees either clockwise or anticlockwise. * For rotating 90 degrees clockwise and anticlockwise the steps...