1. Rahul performed magic in front of his friends. He placed a beaker filled with water on a table
And asked friends to put an egg into the beaker. All of his friends did the same but each time,
The egg into the water. Then Rahul secretly mixed some white powder in the water and he placed an egg into the beaker. Surprisingly, the egg started floating on water.
a) What could be the white powder ?
b) Why did the egg sink earlier but float later ?
a) The white powder is table salt.
b) Before dissolving salt, the egg was denser than water , thus is sinks. After dissolving sufficient amount of salt in water it becomes denser than egg. Thus egg floats later
b) Before dissolving salt, the egg was denser than water , thus is sinks. After dissolving sufficient amount of salt in water it becomes denser than egg. Thus egg floats later