Microwave Propagation MCQs

a) They can be easily absorbed by materials.
b) They can penetrate through walls.
c) They have a short wavelength.
d) They are harmful to human health.
Answer: b) They can penetrate through walls.

a) 10 Hz to 1 kHz
b) 1 MHz to 10 MHz
c) 1 GHz to 10 GHz
d) 100 GHz to 1000 GHz
Answer: c) 1 GHz to 10 GHz

a) Transformer
b) Magnetron
c) Capacitor
d) Resistor
Answer: b) Magnetron

a) Placing metal objects inside the oven.
b) Heating liquids in a sealed container.
c) Staring directly into the oven while it is operating.
d) Standing too close to the oven while it is operating.
Answer: d) Standing too close to the oven while it is operating.

a) They have a high frequency.
b) They have a low frequency.
c) They have a long wavelength.
d) They have a low speed.
Answer: a) They have a high frequency.

a) They can be easily absorbed by materials.
b) They cannot penetrate through walls.
c) They have a short wavelength.
d) They are harmful to human health.
Answer: a) They can be easily absorbed by materials.

a) Cooking food
b) Generating electricity
c) Producing sound
d) Detecting earthquakes
Answer: a) Cooking food

a) They are a type of electromagnetic radiation.
b) They are a type of sound waves.
c) They are a type of radio waves.
d) They are a type of visible light waves.
Answer: a) They are a type of electromagnetic radiation.