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 main types of electromagnetic radiation?

Back

The main types of electromagnetic radiation are radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

Front

What is the wavelength range of visible light?

Back

The wavelength range of visible light is approximately 400 nm to 700 nm.

Front

What are the effects of ultraviolet (UV) radiation on human health?

Back

Ultraviolet (UV) radiation can cause skin burns, increase the risk of skin cancer, and lead to eye damage.

Front

What is infrared radiation commonly used for?

Back

Infrared radiation is commonly used for remote controls, thermal imaging, and night vision.

Front

What is the typical wavelength range of microwaves?

Back

The typical wavelength range of microwaves is from 1 mm to 1 m.

Front

What precautions should be taken when working with high-energy electromagnetic radiation?

Back

Precautions include wearing protective clothing, using shielding, and limiting exposure time.

Front

How does the frequency of electromagnetic waves relate to their energy?

Back

The energy of electromagnetic waves is directly proportional to their frequency; higher frequency waves have more energy.

Front

What is the role of the ozone layer in relation to UV radiation?

Back

The ozone layer absorbs a significant portion of the sun's harmful ultraviolet (UV) radiation, protecting living organisms on Earth.

Front

What are radio waves used for?

Back

Radio waves are used for communication, including television, radio broadcasting, and mobile phone signals.