35. A 10 cm long wire is placed horizontally on the

A 10 cm long wire is placed horizontally on the surface of water and is gently pulled up with a force of 2 ×10^-2 N to keep the wire in equilibrium. The surface tension, in Nm^-1, of water is

(a)  0.1

(b)  0.2

(c)   0.001

(d)  0.002

Ans. a