Inventions Practice Test 133
Electron microscope Quiz Questions and Answers PDF - 133
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The Quiz: In which one of the following year, the electron microscope was invented; "Electron microscope" App Download (Free) with answers 1940, 1869, 1937 and 1985 for taking online classes. Solve inventions and inventors questions and answers, Amazon eBook to download free sample for distance learning.
Electron microscope Questions and Answers PDF Download: Quiz 133
MCQ 661: In which one of the following year, the electron microscope was invented?
- 1869
- 1940
- 1937
- 1985
MCQ 662: In which one of the following year, waterbed was invented?
- 1801
- 1822
- 1833
- 1847
MCQ 663: The airplane was invented by
- Sir Orville
- Sir Wilbur
- Sir Benjamin Franklin
- both a and b
MCQ 664: In which one of the following year, coat hanger was discovered?
- 1805
- 1888
- 1844
- 1869
MCQ 665: The radio Guidance system was invented by
- Sir Adolph Rickenbacker
- Sir George Beauchamp
- Sir Guglielmo Marconi
- Sir Wilhelm Conrad Roentgen
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