One way of measuring a person's body fat content is by "weighing" them under water. This works because fat tends to floats on water as it is less dense than water. On the other hand muscle and bone tend to sink as they are more dense. Knowing your 'weight' under water as well as your real weight out of water, the percentage of your body's volume that is made up of fat cab easily be estimated, fat (low density) and everything else (high density). The "weight" measured by spring balance both inside and outside the water. Quotes are placed around weight to indicate that the measurement read on the scales is not your true weight, i.e. the force applied to your body by gravity, but a mersurement of the net downward force on the scale.
Ram is being weighed by the spring balance in two different situations. First when he was fuily immersed in water and the second time when he was partially immersed in water, then

Options

A. Reading will be more in the first case.
B. Reading will be more in the second case.
C. Reading would be same in both the cases.
D. Reading will depend upon experimental setup.

Answer

B

Explanation

`V_(1) gt V_(2) rArr W_(app. (1)) lt W_(app.(2))`
(Since `W_(app.) = W - Vrho_(l)g`)