Final answer:
The photosphere is the visible surface of the Sun that emits visible light.
Explanation:
The visible surface of the Sun is the photosphere.
The photosphere is the layer where the Sun becomes opaque, blocking our view deeper into the Sun. It is the part of the Sun that emits visible light as a form of electromagnetic radiation.
Visible light has a maximum wavelength of about 0.5 micrometers, which is essential to our health in moderate doses.
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