Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

What are the characteristics of gamma rays?

Back

Gamma rays have the highest frequencies and the shortest wavelengths in the electromagnetic spectrum. They are highly energetic and can penetrate most materials.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What type of electromagnetic waves are used in remote controls?

Back

Infrared rays are commonly used in remote controls for televisions and other devices.

Front

What is the role of ultraviolet rays in the human body?

Back

Ultraviolet rays help the body produce vitamin D, which is essential for bone health.

Front

Which electromagnetic waves are used for communication in cell phones?

Back

Microwaves are used for communication in cell phones and other wireless devices.

Front

What are the properties of visible light?

Back

Visible light is the portion of the electromagnetic spectrum that can be seen by the human eye, consisting of colors ranging from red to violet.

Front

What is the frequency range of infrared rays?

Back

Infrared rays have frequencies ranging from about 300 GHz to 400 THz.

Front

How do x-rays work?

Back

X-rays are a form of electromagnetic radiation that can pass through soft tissues but are absorbed by denser materials like bones, making them useful for medical imaging.

Front

What is the significance of radio waves?

Back

Radio waves are used for communication, including television and radio broadcasting, as well as in mobile phones.