Question

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:

A. the balance A will read more than `2kg`
B. the balance B will read more than `5kg`
C. the balance A will read less than `2kg` and B will read more than `5kg`
D. the balance A and B will read `2kg` and `5kg` repectively

Answer 1

Correct Answer - B::C
Due to Bouyancy effective weight of block of `2kg` reduces so reading of spring balance. A reduces but weight on balance B increases so its reading increases.