A) \[{{\text{S}}_{1}}\] and S2
B) \[{{\text{S}}_{1}}\] and \[{{\text{S}}_{4}}\]
C) \[{{\text{S}}_{2}}\] and \[{{\text{S}}_{3}}\]
D) \[{{\text{S}}_{2}}\] and \[{{\text{S}}_{4}}\]
Correct Answer: D
Solution :
Physical balance measures the mass whereas spring balance measures the weight. As the mass remains unchanged at all places an object, shall weigh same at pole and equator when weighed by physical balance. Weight depends on the acceleration due to gravity as \[{{g}_{pole}}>{{g}_{equator}}\], the object shall weight more at poles that at equator when weighed using a spring balance.
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