Question

For which of the following quantities, the ratio is not dimensionless Work Energy Stress Young's modulus Refractive inder Plane angle Momentum Time​

Answer 1

The dimensions of a physical quantity are the powers (or exponents) to which the base quantities are raised to represent that quantity.

Angle and solid angle has radians as units.

Mechanical equivalent of heat has joules as unit

.

Refractive index of a material is a dimensionless number.

n=c/v

n = refractive index

c = speed of light in vacuum

v = speed of light in medium

Explanation:

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