A spring balance reads `W_(1)` when a ball is suspended from it. A weighing machine reads `W_(2)` when a tank of liquid is kept on it. When the ball is immersed in the liquid, the spring balance reads `W_(3)` and the weighing machine reads `W_(4)`. Then, which of the following are not correct?

Options

A. (i),(iii)
B. (i),(iv)
C. (ii),(iii)
D. (ii),(iv)

Answer

A

Explanation

`W_1 = m_1 g, W_2 = m_2 g`
`W_3 + F_B = m_1 g, W_4 = F_B + m_2 g`
`W_3 lt W_1, W_4 = W_2`.