General Knowledge on Inventions

(Click on suggested Options to select the answer \| Color Red means : Wrong & Green Means: Correct)
241. Which country has created world's Lightest synthetic material on April 2016? A. China B. India C. United States D. Japan Check Answer \| Discussion 242. Who discovered the conversion of electrical energy into mechanical energy in 1821 leading to the invention of Electric motor? A. Issac Newton B. Michael Faraday C. David fedrer D. Knight O Loren Check Answer \| Discussion 243. Who invented bifocal lens in 1780? A. Benjamin Franklin B. Gottlieb Daimler C. James Maxwell D. John Fleming E. None Check Answer \| Discussion 244. Aspirin was discovered by which chemist in Germany in 1899? A. Dr. Felix Hoffmann B. Otto HInomen C. Carl Bosch D. Crimason Aspire Check Answer \| Discussion 245. Who was the first to produce a coloured photograph? A. Albert Einstein B. James Clerk Maxwell C. James Hutton D. Alexander Fleming Check Answer \| Discussion 246. Biro Brothers made a practical design of which pen to help in quality writing? A. Ballpoint Pen B. Fountain Pen C. Ink Pen D. Gel Pen Check Answer \| Discussion 247. Who developed the new design of steam engine that worked on the force of atmospheric pressure? A. James Cowmen B. James Solumnon C. Thomas Newcomen D. John Logie Baird Check Answer \| Discussion 248. Who is the inventor of electromagnet? A. Issac Newton B. William Sturgeon C. Edmund Halley D. B. F. Goodrich Check Answer \| Discussion 249. Who invented the television? A. John Tele B. Richard Taylor C. Thomas A. Edison D. John Logie Baird Check Answer \| Discussion 250. Which scientist invented air pump to create a partial vacuum in 1650? A. David Newmon B. Otto von Guericke C. Albert Einstein D. Charles Goodyear Check Answer \| Discussion
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General Knowledge on Inventions

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