Module2 L1:How light travels ?

Which wave can travel in both a medium and a vacuum?

• Electromagnetic

• Mechanical

• Water waves

• Seismic waves

Which wave travels perpendicular in relation to the vibration of particles?

• Transverse

• Longitudinal

• Both transverse and longitudinal

• None of the other options

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• Microwaves

• Visible light

• Gamma rays

• Radio waves

Which electromagnetic waves are used in ovens and cell phone communications?

• Microwaves

• Visible light

• Gamma rays

• Radio waves

Which type of waves are used in broadcasting?

• Microwaves

• Visible light

• Gamma rays

• Radio waves

For waves in any medium, the shorter the wavelength indicates a:

• Lower frequency

• Higher frequency

• Similar frequencies

• None of the other options

Which of the following has wavelengths longer than microwaves?

• Infra-red

• Visible light

• Gamma rays

• Radio waves

Which electromagnetic waves allow us to diagnose & treat cancer?

• Infra-red

• Visible light

• Gamma rays

• Radio waves

The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of:

• Increasing amplitude

• Increasing Frequency

• Increasing wavelength

• Decreasing amplitude

Which electromagnetic waves help doctors detect broken bones inside your body?

• Gamma rays

• Ultra-violet

• X-rays

• Microwaves