RRB Technician Grade 3 previous year question
If the radius of the Earth were to double while mass remains the same, the new value of g would be ____________ the original value.
Asked in RRB Technician Grade 3 (10 Mar 2026 Shift 2) · Science
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Correct answer: (B) One-fourth
Since g = GM/R², doubling the radius R while keeping mass M constant reduces g by a factor of 2² = 4, meaning the new value of g becomes one-fourth of the original.
हिंदी में प्रश्न
यदि पृथ्वी की त्रिज्या दोगुनी हो जाए और द्रव्यमान अपरिवर्तित रहे, तो g का नया मान, मूल मान का ___________ होगा।
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सही उत्तर: (B) एक-चौथाई
चूंकि g = GM/R² है, द्रव्यमान M स्थिर रखते हुए त्रिज्या R को दोगुना करने पर g, 2²=4 के गुणक से घट जाता है, अर्थात g का नया मान मूल मान का एक-चौथाई हो जाता है।
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