question_answer

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 [AIEEE 2003]            

A)             Both the scales read M/2 kg each            

B)             Both the scales read M kg each                    

C)             The scale of the lower one reads M kg and of the upper one zero            

D)             The reading of the two scales can be anything but the sum of the reading will be M kg