1. which of the following is true and radio waves? A. they have high energiesB. they reveal hot gasses C. they can penetrate dist clouds D. they have short wavelengths2. which of the following is used in medical imagery? A. ultraviolet light B. blue light C. radio waves D. X-rays (I think this is it)3. which of the following has the longest wavelength? A. Red light B. radio waves C. microwaves (I don't know if this is like the kitchen appliance or something else) D. infrared light
Mathematics · Middle School · Mon Jan 18 2021
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1. The correct option is: C. they can penetrate dust clouds
- Radio waves have long wavelengths, and they can penetrate materials like dust clouds and certain obstacles.
2. The correct option is: D. X-rays
- X-rays are commonly used in medical imaging for purposes such as X-ray radiography and computed tomography (CT scans).
3. The correct option is: B. radio waves
- Among the given options, radio waves have the longest wavelength. They have longer wavelengths than microwaves, infrared light, and visible light, with red light having a longer wavelength than blue light.