Question

All constants are dimensions less comment

Answer 1

Answer:

false

Explanation:

for example: spring constant =M^1L^0 T^-2

universal gas constant also have dimensions

Answer 2

Correct Question:

"All constants are dimensionless" comment.

Your Answer:

No, it is not necessary that all constants are dimensionless.

Non dimensional constant example

• A dimensionless physical constant (sometimes fundamental physical constant) is a physical constant that is dimensionless—having no unit attached, so its numerical value is the same under all possible systems of units. The best known example is the fine structure constant α ≈ 1/137.036.
• Speed of light is constant but have dimension.

From above two examples it is clear that it is not necessary that all constants are dimensionless.

What is the dimensional constant?

>A dimensional constant is a universal constant having both — fixed magnitudes and dimensions.