Question

A body id floating in a liquid. The upthrust on the body is
A. zero
B. equal to the weight of the liquid displaced
C. less than the weight of the liquid displaced
D. weight of the body – weight of the liquid displaced
15. A fuse wire is a wire of
A. low resistance & low melting point

Answer 1

14-For a body falling freely under gravity, the effective value of g is zero. Hence the upthrust is zero.
15- Fuse wire should have high resistance and low melting point.