Q: A soap film of surface tension 3 × 10-2 formed in a rectangular frame can support a straw as shown in figure. If g = 10 ms-12, the mass of the straw is
(a) 0.006 g
(b) 0.06 g
(c) 0.6 g
(d) 6 g
Ans: (c)
Science and Education
Q: A soap film of surface tension 3 × 10-2 formed in a rectangular frame can support a straw as shown in figure. If g = 10 ms-12, the mass of the straw is
(a) 0.006 g
(b) 0.06 g
(c) 0.6 g
(d) 6 g
Ans: (c)