Published by:
CGP EDU Academic Team
Published on: August 14, 2026
If by dropping a stone in a quiet lake a wave moves in circle at a speed of 
, then the rate of increase of the enclosed circular region when the radius of the circular wave is 10 cm , is 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Given the rate of increasing the radius,
Area of circle, 
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