Question

Q. Which of the following is a dimensional constant?

(a) magnification
(b) relative density
(c) Relative error
(d) Gravitational Constant

Do give Reasons for your answer

Answer 1

Answer:

The correct answer of this question is option B, relative density.

Explanation:

Relative density is calculated by dividing the given object's normal density with a preferable object's normal density.

That's why the relative density is just a simple ratio.

And it has no units. (Dimensional unit of relative density is M^0-L^0-T^0 )

That's why the correct answer of this question is option B relative density.

Answer 2

Answer:

Explanation:

Correct answer is - Gravitational constant

Because Although it is a constant, it has dimensions which is : M^-1L³T^-2.

While others do not has any dimension.