Question

The force of surface tension on a ring situated on the surface of water is 14π×10^-4N. Then the diameter of the ring is (surface tension of water = 70×10^-3 N/m)
a) 5 mm
b) 1 cm
c) 2 cm
d) 4 cm
plz.*solve* & *explain it..*
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Answer 1

Answer:

(c)

Explanation:

a) 5 mm

b) 1 cm

c) 2 cm

d) 4 cm

plz.*solve* & *explain it..*

Answer 2

© 2cm is the correct answer