Choose the correct option for the following Assertion (A) and Reason (R).

Question

G1 Physics · Accepted Answer

At water depth h above the hole, v = √(2gh). Therefore the outflow rate decreases as h decreases. For a tank of constant area, |dh/dt| ∝ √h. Hence the water level falls progressively more slowly, so equal height intervals do not require equal times. Both Assertion and Reason are true, and the Reason correctly explains the Assertion. Correct option: A.