An ice cube is floating in water above which a layer of lighter oil is poured. As the ice melts completely, the level of interface and the upper most level of oil will respectively
(a) rise and fall
(b) fall and rise
(c) not change and no change
(d) not change and fall
Correct option (a) rise and fall
Explanation :
As ice melts, its volume decreases, so oil level will decreases, and as volume of water increases, so level of interface will rise.
