Q. Read the following statements $S_{1}$ : An object shall weigh more at pole than at equator when weighed by using a physical balance $S_{2}$ : It shall weigh the same at pole and equator when weighed by using a physical balance $S_{3}$ : It shall weigh the same at pole and equator when weighed by using a spring balance $S_{4}$ : It shall weigh more at the pole than at equator when weighed using a spring balance Which of the above statements is/are correct
A) $S_{1}$ and $S_{2}$
B) $S_{1}$ and $S_{4}$
C) $S_{2}$ and $S_{3}$
D) $S_{3}$ and $S_{4}$
Explanation
(d) $S_{2}$ is correct because whatever be the $g$, the same force is acting on both the pans. Using a spring balance, the value of $g$ is greater at the pole. Therefore $mg$ at the pole is greater. $S_{4}$ is correct. $S_{2}$ and $S_{4}$ are correct
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.