Question

6. An aluminium ball and a gold ball are placed over mercury. What will happen to both the balls?
(Check the densities of the substance using the table given in the chapter.)​

Answer 1

Explanation:

both will float on the Mercury

Answer 2

Explanation:

Either they will sink or float depending on their densities (As mercury is liquid at room temperature while the other two are solid). If the density of the ball is more than mercury, it will sink. Or if its less than mercury, it will float. So, Aluminum ball will float and the gold ball will sink.