BPSC – Combined Competitive Examination · પ્રશ્ન 116
If the Earth's speed of rotation increased, the weight of a body at the equator would:
જવાબ બતાવો અને સમજૂતી
જવાબ: (A) decrease
સમજૂતી
At the equator effective g = g − ω²R, so faster rotation lowers weight (no change at the poles).
- (A) સાચો
Correct: greater centrifugal effect reduces apparent weight (g' = g − ω²R).
- (B) ખોટો
Wrong: it does change at the equator.
- (C) ખોટો
Wrong: incorrect.
- (D) ખોટો
Wrong: it decreases.
- (E) ખોટો
Wrong: only one of the options A–D is correct.