Physical quantity which has no unit and no dimension

Asked by admin @ 17/08/2021 in Physics viewed by 274 People

Give an example of

(a) a physical quantity which has a unit but no dimensions.
(b) a physical quantity which has neither unit nor dimensions.
(c) a constant which has a unit.
(d) a constant which has no unit.

Answered by admin @ 17/08/2021

[A] Quantities having units, but no dimensions : Plane angle,angular displacement, solid angle.These physical quantities possess units but they does not possess dimensional formulas.
B a physical quntatity neither having units nor dimensions are trigonometric ratios,strain , specific gravity etc.
C a constant which has unit is planck constant etc

D a constant with no unit are 1,2,3 ....,etc

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Physical quantity which has no unit and no dimension

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