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

View answer & explanation

Correct answer is C

Tension = upthrust on object

= weight in air - weight i liga

= mg - pvg

= (m - pv)g

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