Question

A block of mass 4 kg is suspended through two light spring balances A and B . then A and B will read respectively.

• A. 4 kg and zero kg
• B. zero kg and 4 kg
• C. 4 kg and 4 kg
• D. 2 kg and 2 kg

Answer 1

The correct option is C 4 kg and 4 kg

$\begin{array}{c}\text{As springs are joined in series, and both springs are massless}\\ \text{force will be same in both springs in equilibrium}\\ \text{condition.}\\ \text{Therefore both will have the same reading i.e.}\\ 4\text{kg (or 40N)}\end{array}$