An object of mass m and volume v, is totally immersed in a liquid of density p. The tension of a string holding it is
A
mg
B
(m + pv)g
C
(m - pv)g
D
pvg
E
[M/m-pv]g
Verified Correct Answer: C.
Physical Principles & Numerical Solution
Tension = upthrust on object
= weight in air - weight i liga
= mg - pvg
= (m - pv)g
Source: Myschool Past Questions Archive (Record #29106)