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SI Units and Coherent Systems MCQs for Competitive Exams

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SI Units and Coherent Systems MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

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Topic Notes: SI Units and Coherent Systems

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

SI Units and Coherent Systems MCQs in Physics are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

Attempt the questions page by page, check the correct answers, read the explanations where available, and compare your weak areas with past papers and mock test performance. Consistent MCQ practice improves speed, confidence, and retention for objective exam sections.

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11
An ornament made of silver is suspected to be hollow. It weighs 288.75 gm in air. It can displace 30 cc of water. If the specific gravity of silver is 10.5, the volume of cavity is
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12
A body floats in a liquid contained in a beaker. The whole system is shown in figure. The upthrust on the body due to liquid is
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13
Which of the following is/are base unit/s:
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14
The units formed by combining the fundamental units of length, mass and time
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15
The instrument used to measure blood pressure of a person is called
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16
Nm^-2 is approximately called:
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17
A boat having a length of 3 metre and breadth 2 metre is floating on a lake. The boat sinks by one cm when a man gets on it. The mass of the man is
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18
A wooden block is taken to the bottom of a deep, calm lake of water and then released. It rises up with a
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19
The SI unit of density is
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20
Alcohol is more volatile than water, because
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