Explain the concept of mass, length and time. Why mass, length and time are called fundamental quantites.

Assertion (A): Temperature is a fundamental quantity in SI system. Reason (R ): In other systems of measurement only mass, length and time are fundamental quantities.

How do we measure the standard international unit for mass, length and time? Also explain why they are also called fundamental units?

List the SI units of length, mass and time.

Why are length, mass and time chosen as fundamental quantites in mechanics ?

If Planck's constant (h) and speed of light in vacuum (c ) are taken as two fundamental quantites, which on of the following can, in addition, be taken to express length, mass and time in terms of the three chosen fundamental quantities ?

If Planck's constant (h) and speed of light in vacuum (c ) are taken as two fundamental quantites, which on of the following can, in addition, be taken to express length, mass and time in terms of the three chosen fundamental quantities ?

Find the dimensions of mass in terms of Energy, length and time.