NCF Topic 10

What is the speed of light, c?

Which formula can compute the electromagnetic wave propagation?

Electromagnetic waves propagate at the same speed in air and space.

• True

• False

Which of the following is the process of converting data into radio waves by adding an electronic or optical carrier signal.

• Modulation

• Dispersion

• Fusion

• Multiplexing

The diagram shows

• Analog modulation

• Digital modulation

• Time Division Multiplexing

• Digital Segmentation

Identify 3 factors that affect Radio Signal Path Loss (RSPL).

• Diffraction

• Free space loss

• Absorption loss

• Amplification

Natural terrain can considerably attenuate radio signals, making transmission challenging.

• True

• False

Which one of the following depicts a reduction in the power density of an electromagnetic wave or signal as it propagates through the environment.

• Signal path loss

• Modulation

• Ionization

• Amplification

Radio waves operate between

• 1 to 3 GHz

• 3 to 30 GHz

• 30 to 300 GHz

• 300 to 3000 THz

mmWaves operate between

• 1 to 3 GHz

• 3 to 30 GHz

• 30 to 300 GHz

• 300 to 3000 THz