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What is ceil phone? Describe its working.
asked Oct 26, 2017 in Physics by shamroz (41.5k points)
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What is fax machine? Describe its working.
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What is radio tuning circuit? Describe its working.
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What is telescope? Describe the working of a refracting telescope.
asked Oct 18, 2017 in Physics by shamroz (41.5k points)
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Describe the use and working of endoscope.
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Write the construction and working of a camera.
asked Oct 18, 2017 in Physics by sonia (36.5k points)
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