Which radiations lie to the left of the visible spectrum?

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Explore Alberta's Grade 8 Science curriculum on Light and Optical Systems. Test your knowledge with engaging quizzes including flashcards and multiple choice questions. Prepare effectively for your exam!

Multiple Choice

Which radiations lie to the left of the visible spectrum?

Explanation:
The idea tested is how the electromagnetic spectrum is arranged by wavelength, with radiations arranged from long to short wavelengths as you move from left to right. Radiations to the left of the visible light have longer wavelengths than what our eyes can see, such as infrared radiation, microwaves, and radio waves. These all lie to the left because their wavelengths are longer than visible light, and they carry less energy per photon than visible light. Ultraviolet rays, X-rays, and gamma rays sit to the right of the visible spectrum, since they have shorter wavelengths and higher energy per photon.

The idea tested is how the electromagnetic spectrum is arranged by wavelength, with radiations arranged from long to short wavelengths as you move from left to right. Radiations to the left of the visible light have longer wavelengths than what our eyes can see, such as infrared radiation, microwaves, and radio waves. These all lie to the left because their wavelengths are longer than visible light, and they carry less energy per photon than visible light. Ultraviolet rays, X-rays, and gamma rays sit to the right of the visible spectrum, since they have shorter wavelengths and higher energy per photon.

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