General Knowledge MCQs – Practice Test 14 (Chapter 14)
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Download the "Technology Inventions Learning" App (Android & iOS): World's first microwave oven is invented in; MCQ with answers: 1947, 1942, 1945, and 1944. Practice Asteroid Belt Quiz Questions, download Apple Book (Free Chapter) to pursue education excellence.
MCQ 66: World's first microwave oven is invented in
MCQ 67: George Beauchamp's famous musical invention is
MCQ 68: First machine gun named 'Maxim Gun' was invented in
MCQ 69: Cathode Ray Tube' which used cold cathode diode was invented by
MCQ 70: The first graphical user interface was popularized as
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