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. Image
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Question

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. Image

Options

G1 Physics · Accepted Answer

Step 1: When the block is immersed, buoyancy reduces the tension in its supporting spring balance, so balance A reads less than before. Step 2: The block exerts an equal downward reaction (equal to the buoyant force) on the liquid, increasing the reading of balance B above 5 kg. Among the listed choices, the correct statement is B: balance B reads more than 5 kg.