Correct option is D
Concept:
The flow of water from a hole at the bottom of a container is governed by Torricelli's Law,
which states that the velocity of efflux of a fluid under gravity through an orifice at the bottom
of the container is proportional to the square root of the height of the fluid column.
Solution:
Option A:A straight line shows a constant rate of drainage, which is incorrect.
Option B:Shows no change until the very end, which doesn't match the continuous draining process.
Option C:Shows the wrong pattern of a steep drop does not matching Torricelli’s law.
Option D: Shows the right pattern of a steep drop followed by a slower decrease, matching Torricelli’s law.
Hence option(d) is correct.
