Question

write a the name of a scaler quantity which has no unit​

Answer 1

Answer:

Valocity and Displacement

Answer 2

Answer:

A Scalar Quantity that does not have a unit is the refractive index of a medium.

Explanation:

Scalar Quantity:

• These are quantities that have magnitude but does not have any direction.
• Examples of scalar quantities are distance, temperature etc.

Scalar Quantity with no unit:

If a scalar quantity does not have a unit, then that quantity must be a ratio.

Refractive Index:

When light is travelling from one medium to another its speed changes. Refractive index is the ratio of the speed of light in a medium to the speed of light in vacuum. It is denoted by n. Suppose light travels in a medium with velocity v then the refractive index is given by

                                                $n=c/v$

Thus a scalar quantity that has no unit is the refractive index of a medium.