RRB NTPC CBT-1 previous year question
A physicist is designing an experiment where the result depends on the product of force and velocity. Which of the following physical quantities is directly measured by this product, considering units and dimensions?
Asked in RRB NTPC 2026 — 15 June Shift 3 · General Awareness
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Correct answer: (C) Power
Force (N) multiplied by velocity (m/s) has units N·m/s = J/s = Watt, which is the unit of Power. Hence the product of force and velocity directly gives power.
हिंदी में प्रश्न
निम्नलिखित में से किस चोल शासक को एक शक्तिशाली नौसेना के निर्माण और श्रीलंका, मालदीव एवं लक्षद्वीप पर विजय प्राप्त करने का श्रेय दिया जाता है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) विजयालय
बल (न्यूटन) को वेग (मी/से) से गुणा करने पर मात्रक N·m/s = J/s = वाट मिलता है, जो शक्ति (पावर) का मात्रक है। अतः बल और वेग का गुणनफल सीधे शक्ति देता है।
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