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Question

Difficulty: HardSpace Technology and Astronomy

Arrange the following structural layers of the Sun in correct sequence, moving progressively outward from the solar interior to the outermost regions of the solar atmosphere:

  1. 1Radiative Zone
  2. 2Convective Zone
  3. 3Photosphere
  4. 4Chromosphere
  5. 5Corona

Answer

The correct sequence moving from the inner solar region outward to the solar atmosphere is: Radiative Zone, Convective Zone, Photosphere, Chromosphere, and Corona.
Moving progressively outward from the nuclear core, solar energy traverses the Radiative Zone via electromagnetic diffusion, then passes through the Convective Zone via circulating plasma currents. The visible surface boundary is the Photosphere, above which the solar atmosphere is divided into the lower Chromosphere and the extreme outer Corona.

Step-by-Step Solution

1
Sequence the internal energy transport layers surrounding the core.
The Radiative Zone sits immediately above the core (0.250.25 to 0.700.70 solar radii), followed by the Convective Zone (0.700.70 to 1.001.00 solar radii).
As internal temperature drops outward, plasma opacity increases, causing energy transport to transition from photon radiation to fluid thermal convection.
2
Identify the boundary separating the solar interior from the solar atmosphere.
The Photosphere lies directly atop the Convective Zone.
The photosphere represents the optical surface of the Sun where light becomes transparent enough to escape freely into space.
3
Arrange the exterior solar atmospheric layers in outward order.
The Chromosphere sits directly above the photosphere, which is encircled by the outermost extended Corona.
The chromosphere forms the lower, cooler atmospheric shell, whereas coronal magnetic heating causes the extreme outer corona to expand far into space.

Key Concept

Solar Interior Structure and Atmospheric Stratification
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Topics

Space Technology and Astronomy

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