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

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Sum of the reading of spring balance ‘A’ and balance B is 7 kg

The balance A and B will read 2 kg and 5 kg respectively

The balance A will read less than 2 kg and B will read more than 5 kg

The balance A will read more than 2kg

answer is B, C.

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Detailed Solution

Force of upthrust will be there on mass m shown in given 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 5kg.

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Best Online Course for CBSE