Electromagnetic Spectrum IGCSE

Select the correct order of waves on the EMS 

• Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
• Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
• Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
• Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

Name the distance between adjacent peaks of a wave ( symbol λ)

• Amplitude

• Frequency

• Length

• Wavelength

A certain photon of light has a wavelength of 4.22x10^-7nm. What is the frequency? (v=c/λ)

• 7.11x10¹⁴ Hz
• 7.11Hz
• 1.41x10^-15
• -1.41x10¹⁵

Light behaves like both a particle and a ______.

• Mass
• Wave
• Current

Which of the following has the shortest wavelength?

• microwaves

• UV rays

• Infrared

• the color blue

Which of the following has the longest wavelength?

• Infrared

• The color Indigo

• gamma rays

• TV

1. Which is an example of longitudinal wave?

• sound waves

• light wave

• radio wave

• water wave

Sound waves of frequency 2.0kHz travel through a substance at a speed of 800m/s. What is the wavelength of the waves?

• 0.40m

• 2.5m

• 400m

• 1600m

Which group contains only electromagnetic waves?

• light waves, radio waves, γ-rays

• light waves, radio waves, sound waves

• light waves, sound waves, γ-rays

• radio waves, sound waves, γ-rays

The lowest frequency form of visible light is...

• Red

• Yellow

• Green

• Violet