Q.

Assertion: A coin is placed on the phonogram turntable. When the motor starts, the coin moves along the turntable. As the speed goes on increasing the coin flies off after some time.
Reason: The gravitational force of turntable provides the necessary centripetal force to the coin.

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

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

b

If both Assertion and Reason are true and the Reason is not a correct explanation of the Assertion

c

If Assertion is true but Reason is false

d

If both Assertion and Reason are false.

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

detailed_solution_thumbnail

As the angular speed of the turn table increases the centrifugal force on the coin increases once it becomes more then the maximum frictional force it flies off.

Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon