- Activity of a radio-active substance is the rate of decay of radioactive nuclei. While Curie (Ci) is a unit of radioactivity, the SI unit is the Becquerel (Bq). 1 Ci = 3.7 × 10¹⁰ Bq. - The power of a lens is measured in Dioptres (D). This is the SI unit. - Heat is a form of energy, and its SI unit is Joule (J). - Pressure is force per unit area, and its SI unit is Pascal (Pa).
Which of the following pairs is NOT correctly matched? Quantity - S.I. Unit
Asked in UPPCS Prelims 2022 · Topic: Measurement/Unit (Non-SI Units (e.g., Astronomical Unit, Light-Year, Electron-Volt))
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Answer: A. Activity of radio-active substance - Curie
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