Question

two examples of a dimensional unit from the derived dimensionless units (angles).

Answer 1

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Dimensionless quantity is also known as the quantity of dimension with one as a quantity which is not related to any physical dimension.

• It is a pure number with dimension 1.
• These dimensionless quantities are widely used in Maths and Physics.
• These quantities are obtained as products or ratios of quantities.
• Following are the example of physical quantities that have units but are dimensionless: (* *examples is in attachment* *)