The area of a circle is given by A= r^ 2 , where r is the radius. Find the rate of…
Physics · NEET · NTA Exams — Basic Mathematics for Physics
The area of a circle is given by \(A=\pi r^{2}\), where r is the radius. Find the rate of increase of area w.r.t. radius at r = 7 cm.
- 22
- 33
- 44
- 55
Answer
(C) 44
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A cylindrical metallic rod in thermal contact with two reservoirs of heat at its two ends conducts an amount…
- For cooking the food, which of the following type of utensil is most suitable
- A particle starting from the origin (0, 0) moves in a straight line in the plane. Its coordinates at a later…
- If loga = 7 and logb = 3 then find the value of 9 2 .
- Find the value of 42^ 48^ + 42^ 48^
- A car travels 25 km an hour faster than a bus. For a journey of 500 km the bus takes 10 hours more than the…
- If the equation of circle is x^ 2 +y^ 2 +8 x-10 y-8=0 , then The center is (-4, 6) The radius is 7
- A cylindrical rod having temperature T 1 and T 2 at its ends. The rate of flow of heat is Q 1 cal/s . If all…
More Basic Mathematics for Physics questions · Browse all practice questions