Electromagnetic Spectrum Exploration

Which type of electromagnetic wave has the shortest wavelength?

• Radio waves

• Microwaves

• Gamma rays

• Visible light

As the frequency of an electromagnetic wave increases, what happens to its wavelength?

• It increases

• It decreases

• It remains constant

• It becomes infinite

Which part of the electromagnetic spectrum is used for satellite communication?

• Infrared

• Ultraviolet

• Microwaves

• X-rays

Arrange the following parts of the electromagnetic spectrum in order of increasing frequency: X-rays, Radio waves, Microwaves, Visible light.

• Radio waves, Microwaves, Visible light, X-rays

• X-rays, Visible light, Microwaves, Radio waves

• Microwaves, Radio waves, X-rays, Visible light

• Visible light, X-rays, Microwaves, Radio waves

Which type of electromagnetic wave interaction with matter involves the wave being absorbed and then re-emitted at a lower energy?

• Reflection

• Refraction

• Scattering

• Transmission

What is a common application of ultraviolet (UV) radiation?

• Cooking food

• Sterilizing medical equipment

• Broadcasting radio signals

• Heating homes

What is the relationship between wavelength (\(\lambda\)) and frequency (\(f\)) of an electromagnetic wave?

• \(\lambda = f \times c\), where \(c\) is the speed of light

• \(\lambda = \frac{c}{f}\), where \(c\) is the speed of light

• \(\lambda = f^2 \times c\), where \(c\) is the speed of light

• \(\lambda = \sqrt{f \times c}\), where \(c\) is the speed of light

Which part of the electromagnetic spectrum do humans emit?

• Visible light

• Ultraviolet

• Infrared

• X-rays

What is the primary use of X-rays in healthcare?

• To measure blood pressure

• To sterilize surgical equipment

• To image the interior of the body

• To treat vitamin D deficiency

Which type of electromagnetic waves are primarily responsible for causing sunburns?

• Infrared

• Ultraviolet

• Microwaves

• Radio waves