Distinguish between dimensional variables and dimensional constan… - Vidyadip

Question

Distinguish between dimensional variables and dimensional constants. Give example too.

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Answer

Dimensional variables are those quantities which have dimensions and whose numerical value may change. Speed, velocity, acceleration etc., are dimensional variables. Dimensional constants are quantities having dimensions but having a constant value, e.g., gravitation constant (G), Planck's constant (H), Stefan's constant $(\sigma)$ etc.

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