Q69. A stone of mass 250g is tied to the end of a string of length 1.0m. It is whirled in a horizontal circle with a frequency of 30rev/min. What is the tension in the string ?Physics — Circular Motion and Momentum — Question 69 of 121A. π2/4NB. π2NC. π2/2ND. 2π2NPractice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →