A book starts on a shelf 1 m off of the ground. You then move the book to a higher shelf that is 3 m off of the ground. If the s
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Answer:
C) Visible
Explanation:
The electromagnetic (EM) spectrum is the range of all types of electromagnetic radiation. The types of electromagnetic radiation that make up the electromagnetic spectrum are radio waves, microwaves, infrared light, visible, ultraviolet light, X-rays and gamma-rays.
<u>Region </u> <u>Wavelength</u>
Radio >0.1 cm
Infrared 7000 Â to 0.1 cm
Visible 4000 to 7000 Â
Ultraviolet 100 to 4000 Â
X-ray 0.1 to 100 Â
Gamma ray <0.1 Â
Most electromagnetic radiation from space is unable to reach the surface of the Earth. Earth's atmosphere is opaque to most wavelengths expect those in the visible part of the spectrum and in some parts of the radio.
From Wein's Law, the black-body radiation curve for different temperatures will peak at different wavelengths that are inversely proportional to the temperature.
λ
Where,
λ is the maximum wavelength
b is Wien's displacement constant = 2.9 × 10⁻³ Km = 0.290 Kcm
T is the absolute temperature in kelvins
λ
λ = 4.83 × 10⁻⁵ cm
λ = 4830 Â
This wavelength 4830 Â lies in the visible region of the Electromagnetic spectrum.