Question

Which of the following substance will float on water?

• A. substance A with a density of $0.6\frac{gm}{c{m}^3}$
• B. substance B with a density of $11.5\frac{gm}{c{m}^3}$
• C. substance C with a density of $7.9\frac{gm}{c{m}^3}$
• D. substance D with a density of $1.1\frac{gm}{c{m}^3}$

Answer 1

The correct option is A

substance A with a density of $0.6\frac{gm}{c{m}^3}$

1. The substances which have less density than water float on water.
2. The density of water is $1\frac{gm}{c{m}^3}$.
3. Only substance A has less density than water hence it floats.

Hence option A is correct.