Question

A magnetron is used in_____________________.

• A. Telephone receiver
• B. Microwave oven
• C. Laser printer
• D. Scanner image

Hint:

Magnetron = Microwave generator → used in microwave ovens for heating food.

Answer 1

The Correct Option is B

A magnetron, a high-power vacuum tube, is the primary component in a microwave oven responsible for generating microwaves. These electromagnetic waves, operating at approximately 45 GHz, agitate water molecules within food, producing heat and thus cooking or warming it. Magnetrons are not employed in devices such as telephone receivers, laser printers, or scanners, as these technologies utilize distinct operational principles.