JEE Main 2003 Physics question

Physics Laws of Motion JEE Main 2003

A light spring balance hangs from the hook of the other light spring balance and a block of mass M kg hangs from the former one. Then the true statement about the scale reading is

(1)Both the scales read Mkg eachCorrect
(2)The scale of the lower one reads Mkg and of the upper one zero
(3)The reading of the two scales can be anything but the sum of the reading will be Mkg
(4)Both the scales read M/2 kg each

Answer: (1)

Solution

Both balances are light (massless), so the tension is the same throughout the chain. The lower balance supports the block of weight Mg, and the upper balance supports the lower

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Question ID VK-038075