Physics
The waves used by TV remote control are:
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Which lens is used in microscopes?
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A mobile phone sends and receives messages through:
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The gas usually filled in electric bulbs is:
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What does a Thermostat do?
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While going towards the center of the Earth, the weight of a body shall:
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Radioactivity is measured in:
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What is Acoustics?
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Long sight defect could be corrected by using ——- lens.
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