Q. 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
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 $M\ kg$
Explanation
(b) As the spring balance are massless therefore both the scales read $M\ kg$ each
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.