Physics
Which of the following layers make radio transmission possible?
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The half life of a radioactive element is 8-days. How long it take to reduce it from 10 mg to 5 mg?
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A moderator is used in nuclear reactor in order to ?
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Quartz crystal in quartz watches work on the principle called?
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Water is heated in a kettle. A person sitting near the fire receives heat by ________?
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The echo will be distinctly heard if distance is at least ________?
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It is possible to recognize a person by voice due to the_______?
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Minimum length of mirror to see full image is?
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In sonar we use ?
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