engineering recuitment AAI Junior Executive (Common Cadre) Mock Test 2023 General Knowledge Science Technology and Inventions
"Electric bulb" was invented by _______ and he was from _______.
1
Col. J. Schick, USA
2
J. Harrison and A. Catlin, England
3
Thomas Alva Edison, USA
4
Sir Humpherey Davy, England
5
J. Harrison, USA