Consider two spring balances hooked as shown in figure. We pull them in opposite directions. If the reading shown by A is 1.5N, the reading shown by B will be
A
1.5N
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B
2.5N
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C
3.0N
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D
Zero
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Solution
The correct option is A1.5N If one spring shows 1.5 N this shows that the tension in the string is 1.5 N (to maintain equilibrium). Now, symmetrical situation exists for the other spring as well , it is pulled by a tension of 1.5 N, hence it shows a reading of 1.5 N