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Among the following, which is not a metric system?
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The ‘CGS’, ‘MKS’, and SI units are metric systems of units and ‘FPS’ is not a ______ system.
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FPS is a ______ system of units.
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The unit of length in the FPS system is the foot.
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The unit of mass in the CGS system is the kilogram.
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Name the British system of units.
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The atmospheric pressure on the surface of the earth is about ______.
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At the given depth, a liquid exerts ______ 1 pressure in all directions.
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The pressure exerted by the air around us is called ______ pressure.
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When a magnesium ribbon is burnt in the air, the ash formed is ______.
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Reason out
Ozone is produced naturally in the stratosphere.
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An element ‘A’ on exposure to moist air turns reddish-brown and a new compound ‘B’ is formed. The substance ‘A’ and ‘B’ are:
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Which of the following scientists observed that cathode rays consist of negatively charged particles?
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Crookes Rays are also called ______.
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Cathode rays are made up of material particles that have mass and ______.
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Match the following
| 1. | Crooke’s tube | a. | Negatively charged particles |
| 2. | Cathode rays | b. | Cathode ray tube |
| 3. | Proton | c. | Positively charged particles |
| 4. | Anode rays | d. | 1.6 x 10-24 g |
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What is electrical discharge?
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Name the subatomic particles of an atom.
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Explain the properties of Cathode rays.
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