Assertion A: Large size stones are required in stone revetment in shore protection. Reason R: Resistance of stone to wave force is proportional to its volume and wave force is proportional to the exposed area of the stone. Select your answer based on the coding system given below.
A)Both A and R is true and R is the correct explanation of A
B)Both A and R is true but R is not a correct explanation of A
C)A is true but R is false
D)A is false but R is true

Question

Quizplus · Accepted Answer

The assertion and reason are both true, and the reason correctly explains the assertion. Larger stones are preferred in shore protection because their larger volume provides greater resistance to wave forces, which indeed are proportional to the stone's exposed surface area.

Assertion A: Large Size Stones Are Required in Stone Revetment