Tamil Nadu Board Solutions for Chapter: Fluids, Exercise 2: textbook exercises

A block of wood of weight $200 \mathrm{g}$ floats on the surface of the water. If the volume of block is $300 {\mathrm{cm}}^3$, calculate the upthrust due to water in terms of newton.

(Take $g=10 \mathrm{m} {\mathrm{s}}^{-2}$)

The density of mercury is $13600 \mathrm{kg} {\mathrm{m}}^{-3}$. Calculate the relative density. (Take the density of water is $1000 \mathrm{kg} {\mathrm{m}}^{-3}$)

The density of water is $1 \mathrm{g} {\mathrm{cm}}^{-3}$. What is its density in SI units?

Calculate the apparent weight of wood floating on water if it weighs $100 \mathrm{g}$ in air.

How high does the mercury barometer in metre stand on a day when atmospheric pressure is $98.6 \mathrm{k} \mathrm{Pa}$? (Take density of mercury is $13.6\times {10}^3 \mathrm{kg} {\mathrm{m}}^{-3}$)

How does a fish manage to rise up and move down in the water?

If you put one ice cube in a glass of water and another in a glass of alcohol, what would you observe? Explain your observations.

Why does a boat with a hole in the bottom would eventually sink?