A ring takes time t1 in slipping down an inclined plane of length L and takes time t2 in rolling down the same plane. The ratio  t1/t2 is

A ring takes time t1 in slipping down an inclined plane of length L and takes time t2 in rolling down the same plane. The ratio  t1/t2 is (a)  √2:1 (b)  1:√2 (c)   1 : 2 (d)  2 : 1 Ans. …