The spring balance $A$ reads $2$ $kg$ with a block $m $ suspended from it. $A$ balance $B$ reads $5$ $kg$ when a beaker with liquid is put on the pan of the balance. The two balances are now so arranged that the hanging mass is inside the liquid in the beaker as shown in the figure in this situation:
Diffcult
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Balance $A$ will read less than $2 \mathrm{kg}$ as an upward buoyant force is acting on the block. Balance $B$ will read more than $5\, kg$ as downward reaction of the block due to buoyant force is acting on beaker.
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