Sunil Batra Solutions for Chapter: Floating Bodies, Exercise 7: NTSE--Target: Scholastic Aptitude Test-SAT

Ice floats on water in a beaker. When ice completely melts then the level of water in a beaker:

The volume of a substance is $20 {\mathrm{cm}}^3$. The mass of the substance if its relative density is $2.5$ will be _____.

Why is it easier to swim in sea water?

A body floats in liquid but stays completely immersed in it when :

Which will be easier to lift?

A piece of cork of mass $4 \mathrm{kg}$ floats in water with $40\%$ of its volume underwater. What is the specific gravity of the cork?

A body of weight $70 \mathrm{N}$ is floating in a liquid. The buoyant force acting on the body is 

A body weighs $100 \mathrm{N}$ in air. It measures $80 \mathrm{N}$ when partially immersed in a liquid. The buoyant force acting on the body is