Electromagnetic Spectrum GA. S8P4 b,d

What type of waves are microwaves classified as?

• Longitudinal waves

• Transverse waves

• Mechanical waves

• Sound waves

How do electromagnetic waves differ from mechanical waves?

• They require a medium to travel

• They can travel through a vacuum

• They are produced in the same way

• They have no energy

What is the speed of light in a vacuum?

• 300,000 km/s

• 150,000 km/s

• 500,000 km/s

• 600,000 km/s

What is the relationship between wavelength and frequency in electromagnetic waves?

• They are directly proportional

• They are inversely proportional

• They are unrelated

• They are equal

Which phenomenon demonstrates the dual nature of light?

• Refraction

• Reflection

• Interference pattern

• Diffraction

What occurs when peaks and valleys of light waves overlay?

• Reflection

• Refraction

• Constructive and destructive interference

• Absorption

What happens to the intensity of light as the distance from the light source increases?

• It increases

• It stays the same

• It decreases

• It becomes brighter