how can we classify variables and constant on the basis of dimension
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Answer:
Dimensional variables:
Dimensional variables are those physical quantities which have dimensions and do not have a fixed value. e.g.: velocity, acceleration, force, work, power, etc.
Dimensional constants:
The physical quantities which have dimensions and have a fixed value are called dimensional constants.
e.g.: Gravitational constant (G),
Planck’s constant (h),
Universal gas constant (R),
Velocity of light in a vacuum (C), etc.