EM Radiation Quiz

Electromagnetic waves are produced by ___________.

• any disturbance

• changing fields

• vibrating charge

• voltage source

Which of the following forms of electromagnetic wave has the WIDEST wavelength range?

• microwave

• radio wave

• ultraviolet ray

• x-ray

In the visible spectrum, which color has the LONGEST wavelength?

• blue

• green

• violet

• red

Which among the following electromagnetic waves has the SHORTEST wavelength?

• infrared

• microwave

• x-ray

• gamma ray

Electromagnetic waves can travel through a vacuum. What is the speed of an

electromagnetic wave in a vacuum?

• 3 x 10⁸  m/s

• 3 x 10⁸ m/s²

• 3 x 10⁹  m/s

• 3 x 109 m/s²

Among the given EM waves below, which carries the most energy?

• microwave

• radio wave

• gamma ray

• visible light

What happens to the frequency of electromagnetic wave if its wavelength increases?

• decreases

• doubles

• also increases 

• remains the same

Which two waves lie at the beginning and end of the electromagnetic spectrum?

• gamma ray and X-ray

• microwave and ultraviolet rays

• radio wave and gamma ray

• radio waves and microwaves

Which of the following is correctly arranged from lowest to highest energy?

• microwave, visible light, radio wave

• ultraviolet, radio wave, infrared

• visible light, ultraviolet, gamma ray

• x-ray, gamma ray, ultraviolet

These are waves that are created as a result of vibrations between an electric field and magnetic field.

• mechanical wave

• electromagnetic wave

• microwave

• radio wave