Question

Give reason for following
A. Hydrogen balloon raises in air
B. In a Kerosene lamp, Kerosene raises through the wick
C. Kerosene floats on water
D. An egg Sinks in pure water, it will float on salt water​

Answer 1

Answer:

The hydrogen-filled balloon initially rises in the air because the weight of the displaced air i.e., upthrust is greater than the weight of the hydrogen and the balloon.