Rank the layers of the Sun based on their average temperature

Rank the layers of the Sun based on their average temperature, from hottest to coolest

A) Corona
B) Photosphere
C) Core
D) Convection Zone
E) Radiative Zone
F) Chromosphere

The correct answer and explanation is :

Correct Ranking from Hottest to Coolest:

1. Core (C)
2. Radiative Zone (E)
3. Convection Zone (D)
4. Corona (A)
5. Chromosphere (F)
6. Photosphere (B)

Explanation (Approx. 300 Words):

The Sun is a complex, layered structure with each layer characterized by distinct physical conditions. The average temperature of each layer determines how energy is transported and emitted, and these temperatures vary dramatically from the innermost to the outermost regions.

1. Core – The Sun’s core is by far the hottest region, with temperatures around 15 million °C. This is where nuclear fusion occurs, converting hydrogen into helium and releasing vast amounts of energy that powers the Sun.
2. Radiative Zone – Surrounding the core, this layer has temperatures ranging from 7 million °C near the core to about 2 million °C further out. Energy here is transferred outward by radiation over thousands to millions of years.
3. Convection Zone – In this layer, energy is moved via convective currents. The temperature drops significantly to around 2 million °C at the base to 5,700 °C near the surface.
4. Corona – Surprisingly, the Sun’s outer atmosphere, or corona, reaches temperatures of 1–3 million °C. Although farther from the core, its high temperature is due to poorly understood magnetic heating mechanisms and wave-particle interactions.
5. Chromosphere – Just below the corona, the chromosphere has temperatures ranging from 4,500 °C to 25,000 °C, increasing with altitude. It appears as a red rim during solar eclipses.
6. Photosphere – This is the visible “surface” of the Sun, with an average temperature of about 5,500 °C. It’s the coolest layer among those listed, yet it’s the one we see with the naked eye.

Understanding this temperature structure helps explain the Sun’s behavior, energy output, and the solar phenomena that affect Earth, like solar flares and space weather.