General knowledge Series-28 December 1, 2020December 26, 2020wefru GK Quiz , for Competitive Exam like UPSC, SSC, FDA, and SDA etc… General Knowledge Series -27 Quiz 0 Created on December 01, 2020 By wefru General Knowledge Series 28 CHECK YOUR SKILLS 1 / 10 Q.271 Electron was discovered by Ernest Rutherford Max Planck Joseph Thomson Albert Einstein 2 / 10 Q.272 The first thermionic valve was invented by Thomas Edison Richardson J.A. Fleming Lee De Forest 3 / 10 Q,273 Gunpowder was invented by Roger Bacon Colt C.V. Raman Dr. Gatting 4 / 10 Q.274 For which invention is Otto Hahn famous? Atom bomb Television X-rays Miner's safety lamp 5 / 10 Q.275 Leprosy bacillus was invented by Koch Hansen Fleming Harvey 6 / 10 Q.276 X-rays were discovered by Becquerel Roentgen Marie Curie Van Lue 7 / 10 Q,277 Who discovered cement? Agassit Albertus Magnus Joseph Aspdin Janseen 8 / 10 Q.278 Who discovered North Pole ? Amundson Robert Peary John Cobot Captain Cook 9 / 10 Q.279 Bacteria was first discovered by A.V. Leeuwenhoek Robert Hooke Robert Koch Louis Pasteur 10 / 10 Q.280 Electron microscope was discovered by Garhn and Shortt Knoll and Ruska Farmer and Moore Janseen and Janseen Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz