Q154. A child is revolving a tiny 10g stone, tied at one end of a string, in a vertical loop of 2m diameter. If the stone completes 100 revolutions in 1 second, the work done on it will be:Physics — Work, Power and Energy — Question 154 of 238A. ZeroB. 19.8 JC. 4.9 JD. 9.8 JPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →