1. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

2. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

3. Who invented Barometer ?

Answer: Evangelista Torricelli of Italy in 1644

4. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

5. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.

6. Who invented Automatic rifle ?

Answer: John Browning of U.S.A. in 1918.

7. Who invented Vitamin C ?

Answer:

Scottish naval surgeon James Lind in 1747