![]() That’s why people who operate X-ray equipment leave the room. The amount of radiation in a single X-ray isn’t harmful! But the radiation from a large number of X-rays could be dangerous. ![]() That’s why you wear a lead apron when getting a dental X-ray. These types of high-energy radiation can cause cancer or even kill cells directly. Ionizing radiation includes far ultraviolet light, X-rays and gamma rays. This page compares radio frequency waves and light waves and mentions difference between radio waves and light waves. This means that in the time radio waves travel the length of a football field, light can travel farther than around the world. Ionizing radiation has enough energy to remove electrons from atoms. What is the speed of a radio wave approximately 186,000 miles per second Radio waves travel at the speed of light, which is approximately 186,000 miles per second. And ultraviolet light can give you a sunburn. For example, microwaves have enough energy to cook your food. Even if it can’t ionize atoms, these types of radiation aren’t completely harmless. They include near ultraviolet light, visible light, infrared radiation, microwaves and radio waves. There are several types of non-ionizing radiation. That means it can’t cause atoms to gain or lose electrons. Non-ionizing radiation doesn’t have enough energy to ionize atoms or molecules. Radiation can be either non-ionizing or ionizing. What is the difference between ionizing and non-ionizing radiation? How electromagnetic radiation interacts with the human body (Let’s Talk Science using an image by mohamed Hassan via Pixabay). They travel at the speed of light (2.998 × 108 m/s) in a vacuum. These charge-less bundles of energy are called photons. But you can’t see them or feel them.Įlectromagnetic radiation travels in little packets ( quanta) of energy. Radio waves, X-rays and gamma rays can pass through your body. You can feel infrared radiation and you can see visible light. Finally, radio waves have the lowest energy and longest wavelength. Then come X-rays, ultraviolet light, visible light, infrared radiation and microwave radiation. Gamma rays have the highest energy and shortest wavelength. For example, gamma rays have a very small wavelength and very high frequency. The higher a wave’s frequency, the shorter its wavelength. Wavelength refers to the distance between two adjacent wave peaks. ![]() Frequency refers to the number of waves per second. High-energy gamma rays are on the far left and low-energy radio waves are on the far right (Let's Talk Science using an image by Inductiveload via Wikimedia Commons).įrequency and wavelength are used to describe EMR.
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