Question

Which one of the following is a dimensionless quantity​

Answer 1

Answer:

All pure numbers are dimensionless quantities, for example 1, i, π, e, and φ. Units of number such as the dozen, gross, googol, and Avogadro's number may also be considered dimensionless.

Solid angle, strain and dielectric constant are dimensionless constant.

Explanation:

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Answer 2

Answer:

all pure numbers are dimension dimensionless quantities for example 1, i, π,e units of number such as the doors and gross goal and Avogadro number may also be considered a dimensionless