Question

Surface tension of a liquid is 70 dyne/cm. Its value
in Sl is
(a) 70 N/m
(b) 7x102 N/m
(c) 7x 102N/m
(d) 7 x 10'N/m​

Answer 1

Answer:

heya mate there's your answer

1dyne =10^-5N and 1cm=10^-2m

70dyne/cm=70×10^-5/10^-2

=70×10^-3N/m

=7×10^-2N/m

hope it helps you

Thank you