Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section A

Chapter

Applications of Derivatives

Question:

Which of the following statements is true regarding the rate of change of the circumference of a circle per second with respect to its radius.

Options:

It is always equal to \(2\pi \)

It is never equal to \(2\pi \)

It is always equal to \(4\pi \)

It is always equal to \(6\pi \)

Correct Answer:

It is always equal to \(2\pi \)

Explanation:

dC/dr =\[2\pi \]