Discussion
Ravi took some water in a glass. He puts a lemon in it. Then, he keeps adding a lot of salt into the water, half a spoon at a time. After some time, he notices that :
Answer: B
He notices that the lemon floats in water.
A lemon is only slightly denser than plain water, so at first it sinks. Dissolving more and more salt makes the water denser. Once the salt water is denser than the lemon, the upward push of the water (buoyancy) is greater than the lemon's weight and it rises to float.
The lemon does not split, and it would hang mid-way only if the densities happened to be exactly equal; the result of adding a lot of salt is that it floats.
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