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Multiple Choice questions under tag device

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CRT, LED and OLED are types of which of these electronic devices? [MCQ]
posted Oct 1, 2018 by Alok Dev
  • device
  • television
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Which of these is a device used to lift heavy objects from the ground? [MCQ]
posted Sep 11, 2018 by Pooja Rao
  • device
  • general
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What device emits light , which is usually spatially coherent, through a process called stimulated emission? [MCQ]
posted Jul 16, 2018 by Prachi Sharma
  • device
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What device, a tool for studying astronomical phenomena, uses the fact that when a material is heated to................ [MCQ]
posted Jul 6, 2018 by Puneet Batra
  • device
  • astronomy
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