JEE Main Physics question

Physics Laws of Motion JEE Main

A light spring balance hangs from the hook of another light spring balance, and a block of mass M kg hangs from the former one. Then the true statement about the scale reading is [AIEEE 2003]

(A)Both the scales read M kg eachCorrect
(B)The scale of the lower one reads M kg and of the upper one zero
(C)The reading of the two scales can be anything but the sum of readings will be M kg
(D)Both the scales read M/2 kg

Answer: (A)

Solution

Both balances are massless, so each transmits the full weight of the block

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Question ID VK-152821