Discoveries & Inventions

31 Which apparatus is used to measure the intensity of light?

32 Who Invented LED?

33 Who invented Automobiles using gasoline?

34 Which company invented the transistor ratio ?

35 Who is recognised as the Father of Geometry ?

36 Leprosy bacillus was invented by which of the following:

37 Who is the inventor of the Web?

38 Insulin was discovered by :

39 Trie concept of “Green House Gases” was postulated by which of the following:

40 Helicopter was invented by

41 Which insurance salesman invented the fountain pen in 1884?

42 ‘Entomology’ is the science that studies

43 Araneology is the study of:

44 Telephone was invented by which of the following:

45 A tachometer is a device used to measure