chapter 11 em waves

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name all the different types of EM waves

The different types of electromagnetic (EM) waves include radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. Each type has varying wavelengths and frequencies, contributing to their unique properties and applications.

which EM waves have the lowest frequency

Radio waves have the lowest frequency among electromagnetic waves. They are used in various communication technologies, including radio and television transmissions. They typically range from 3 kHz to 300 GHz. These waves are characterized by long wavelengths and the ability to penetrate through various materials.

which EM waves have the highest frequency

Gamma rays have the highest frequency among electromagnetic waves. They are produced by nuclear reactions and certain astronomical phenomena, characterized by their short wavelengths and high energy.

what is the EM wave speed in a vacuum

The speed of electromagnetic waves in a vacuum is approximately 299,792,458 meters per second (or about 300,000 kilometers per second), which is known as the speed of light.

characteristic of EM waves

Electromagnetic waves are characterized by their electric and magnetic fields oscillating perpendicular to each other and to the direction of wave propagation.

what are ionising waves

Electromagnetic waves with enough energy to remove tightly bound electrons from atoms, resulting in ionization. Examples include X-rays and gamma rays.

what is the use of gamma ray

Gamma rays are used in medical imaging and cancer treatment to kill cancer cells.

what is the use of infra-red

Infrared waves are used in thermal imaging, remote controls, and to transfer data wirelessly.

what is the use of microwaves

Microwaves are used in cooking, satellite communications, and radar technology.

whats is the harmful effect of over exposing to gamma ray

Overexposure to gamma rays can cause radiation sickness, increased risk of cancer, and damage to human tissue.

what is the use of radiowaves

Radio waves are used in communication, broadcasting, and radar systems.

harmful effect of when exposed to x-ray

Exposure to x-rays can lead to an increased risk of cancer, radiation burns, and damage to internal organs.

harmful effects when over exposed to ionising radiation

can include radiation sickness, increased cancer risk, and tissue damage.

what are the uses and dangers of ionising radiation

Ionising radiation is used in medical imaging, cancer treatment, and sterilization, but it poses dangers such as radiation sickness, increased cancer risk, and genetic mutations. It is also used in industrial applications and research, but dangers include DNA damage and radiation burns.