In Physics, magnitude is defined as the maximum extent of size and the direction of an object. Magnitude is used as a common factor in vector and scalar quantities.

Magnitude is an essential concept in physics as it provides a quantitative measure of physical quantities. It helps us understand the extent or intensity of various phenomena.

Magnitude is the quantitative value of seismic energy. It is a specific value having no relation with distance and direction of the epicentre. We can say that magnitude is the size of an earthquake. We measure the magnitude with the help of the Richter scale.

magnitude, in astronomy, measure of the brightness of a star or other celestial body. The brighter the object, the lower the number assigned as a magnitude.