Question

If the reference material is water then substance with which relative density will float in water?

• A. less than 1
• B. more than 1
• C. 1
• D. between 0 to 1

Answer 1

The correct option is A less than 1

Relative density of a substance is defined as ratio of density of the substance to the density of water.

If the substance floats in water, the density of substance is less than density of water.

Thus ${\rho }_{substance}<{\rho }_{water}$

$⟹{\rho }_r=\frac{{\rho }_{substance}}{{\rho }_{water}}<1$