Errors, Significant Figures and Measuring Instruments

JEE Main Physics · 7 questions

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• The percentage error in the calculated volume of a sphere, if there is 2\% error in its diameter measurement, is ____.20266 April, Shift 2 · Q26
• The density ρ of a uniform cylinder is determined by measuring its mass m, length l and diameter d. The measured values of m, l…20266 April, Shift 1 · Q26
• In an experiment to determine the resistance of a given wire using Ohm's law, the voltmeter and ammeter readings are noted as 10…20265 April, Shift 2 · Q27
• In a Vernier calipers, when both jaws touch each other, zero of the Vernier scale is shifted to the right of zero of the main…20265 April, Shift 1 · Q26
• In a screw gauge when the circular scale is given five complete rotations it moves linearly by 2.5 mm. If the circular scale has…20264 April, Shift 1 · Q26
• In a screw gauge the zero of main scale reference line coincides with the fifth division of the circular scale when two studs are…20262 April, Shift 2 · Q32
• The diameter of a wire measured by a screw gauge of least count 0.001 cm is 0.08 cm. The length measured by a scale of least…20262 April, Shift 1 · Q27