Inventions Quiz 24 (25 MCQs)

Quiz Instructions:

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1. Earliest version of Cathode Ray Tube which used cold cathode diode was invented by German Physicist is

2. Which was invented first?

3. Alexander Graham Bell is _____

4. When was the game Frisbee invented?

5. Who discovered gravity?

6. What George Pullman invented?

7. Stethoscope was invented by

8. The laws of floating bodies was discovered by

9. Which famous inventor ranks second in the number of patents registered?

10. It's convenient to use correction pen for correcting errors.

11. What natural events led the Chinese to invent the seismograph?

12. This computer has a _____ screen, so you don't need to use a mouse.

13. Who created the lightening rod?

14. Who discovered the iridium layer and won Nobel Prize also?

15. Who invented the ipod?

16. Which organisation has acknowledged that there is evidence of airborne transmission of coronavirus?

17. In the future, all of our homes will be _____, so we can use the sun to get our electricity.

18. What invention allowed farmers to move heavier loads more easily?

19. When was the wheel invented?

20. The Father of white revolution is

21. In which decade were the first successful diode and triode vacuum tubes invented?

22. Where are the first traces of humans on earth?

23. Which entrepreneur helped to popularize photography and make it more mainstream (everybody can use cameras and take pictures)?

24. Railroad locomotive was invented in

25. Each of these two circuits has a light bulb, connected to the same battery