Question

Thomas Edison invented which of the following

1. Telegraph
2.diesel engine
3. Microwave oven
4. None of these

Answer 1

The answer is none of these.

Thomas Edison was invented the Electric Lamp.

By the way,

1. Telegraph was invented by M Lammond
2. Diesel engine was invented by Rudolf Diesel
3. Microwave oven was invented by Percy LeBaron Spencer.

Answer 2

Hi,

The answer is D) None of these

Hope this helps!