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- Question
The Solar System was discoverd by
Options- A. Galleleo
- B. Finsen
- C. Copernicus
- D. None of these
- Correct Answer
- Copernicus
- 1. Who invented the battery?
Options- A. John Wilkinson
- B. Alessandro Volta
- C. James Hargreaves
- D. Thomas Edison Discuss
- 2. Who invented Vacuum Flask?
Options- A. Charles Babbage
- B. Alexander Fleming
- C. Gregory Pincus
- D. James Dewar Discuss
- 3. Who discovered Potassium?
Options- A. Humphry Davy
- B. Alan Turing
- C. Bill Gates
- D. Tim Berners-Lee Discuss
- 4. Who invented the electric tram?
Options- A. James Cook
- B. William Harvey
- C. Fyodor Pirotsky
- D. Robert Boyles Discuss
- 5. Soda water was invented by
Options- A. Tivadar Puskas
- B. Joseph Priestley
- C. Petrache Poenaru
- D. James Leonard Plimpton Discuss
- 6. Telegrahic code was introduced by
Options- A. Lipman
- B. Macmillan
- C. Thomas Moore
- D. Cockrell Discuss
- 7. Lift was invented by
Options- A. Otis
- B. Domagk
- C. Lee De Forest
- D. None of these Discuss
- 8. Who Invented The World Wide Web ?
Options- A. Sir Timothy John
- B. Earle Dickson
- C. James Rineose
- D. Laszlo Jozsef Biro Discuss
- 9. Who Invented Traffic Signal ?
Options- A. Lewis Edson Waterman
- B. Levi Strauss
- C. Percy LeBaron Spencer
- D. Garrett Augustus Morgan Discuss
- 10. Who Invented Modern Frequency Modulation FM Radio ?
Options- A. Peter Durand
- B. Percy Shaw
- C. Edwin H. Armstrong
- D. Leo Hendrik Baekeland Discuss
Inventions problems
Search Results
Correct Answer: Alessandro Volta
Correct Answer: James Dewar
Correct Answer: Humphry Davy
Correct Answer: Fyodor Pirotsky
Correct Answer: Joseph Priestley
Correct Answer: Thomas Moore
Correct Answer: Otis
Correct Answer: Sir Timothy John
Correct Answer: Garrett Augustus Morgan
Correct Answer: Edwin H. Armstrong
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