The spring balance A reads 2 kg with a block m suspended from it. A balance B reads 5kg when a beaker with liquid is put on the pan of the balance. The two balances are now so arranged that the hanging mass in inside the liquid in the beaker as shown in the figure. In this situation:

Options

A. The balance A will read more than 2 kg
B. The balance B will read more than 5 kg
C. The balance A will read less than 2 kg and B will read more than 5 kg
D. The balances A and B will read 2 kg and 5 kg respectively

Answer

C

Explanation

Force of upthrust will be there on mass m shown in figure, so A weighs less than 2 kg. Balance will show sum of load of beaker and reaction of upthrust so it reads more than 5 kg