Quiz on Electromagnetic Waves

_________ is the amount of voltage induced in wave by an electromagnetic wave.

• Receive voltage

• Magnetic induction

• Field strength

• Power density

Who profounded electromagnetic radiation theory?

• Sir Edward Appleton

• James Clerk Maxwell

• Christian Huygens

• Sir Isaac Newton

The D, E and F layers are known as _____________

• Mark-space layers

• Davinson-Miller Layers

• Kennely-Heaviside Layers

• Appleton Layers

Different grouping of the electromagnetic spectrum

• Band

• Bandwidth

• Channel

• Group

What is the relation in degrees of the electric and magnetic fields in an electromagnetic wave?

• 180 degrees

• 90 degrees

• 270 degrees

• 45 degrees

Frequencies in the UHF range propagate by means of

• Ground waves

• Sky waves

• Surface waves

• Space waves

Electromagnetic waves are refracted when they

• Pass into a medium of different dielectric constants

• Are polarized at right angles to the direction of propagation

• Encounter a perfectly conducting surface

• Pass through a small slot in a conducting plane

What is the thickest layer of the ionosphere?

• F2

• F1

• D

• E

The layer that reflects very low frequency waves and absorbs medium frequency waves.

• D layer

• E layer

• F1 layer

• F2 layer

What is the highest frequency that can be sent straight upward and be returned to earth?

• MUF

• Skip frequency

• Critical frequency

• Gyro frequency