Question

Assertion : Water is filled in a U-tube of different cross sectional area on two sides as shown in figure. Now equal amount of oil (RD = 0.5) is poured on two sides. Level of water on both sides will remain unchanged.

Reason : Same weight of oil poured on two sides will produce different pressures.

(a) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion 

(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

(c) If Assertion is true, but the Reason is false.

(d) If Assertion is false but the Reason is true.

Answer 1

Correct option (d) If Assertion is false but the Reason is true.

Explanation :

Assertion is false s due to different cross-sectional area and height of oil columns will be different producing different pressures which lead to different water levels in the limbs of U-tube.