Out of the following expressions for couple per unit twist, time period of a compound pendulum, time period of a simple pendulum and frequency of a stretched wire respectively, the dimensionally consistent expressions are (a) C = (πηr^4)/2l (b) T = 2?√((K^2+l)/g) (c) T = 2?√(l/g) (d) f = 1/l √(T/m)

Р’В·