A. Chromosphere
B. Convection zone
C. Corona
D. Photosphere
E. Radiative zone
Choose the correct answer from the options given below.
Understanding the Sun's Layers: From Core to Outer Atmosphere
The Sun, our closest star, possesses a layered structure extending from its intensely hot core to its vast outer atmosphere. Identifying the correct sequence of these zones is key to understanding solar processes.
Ordering the Sun's Zones from Core Outward
The Sun's structure is organized into several distinct regions. When arranged chronologically from the center outwards, these zones are:
- Radiative Zone (E): This zone directly surrounds the Sun's core. Energy generated via nuclear fusion in the core travels outward through this dense region primarily as photons, which are absorbed and re-emitted countless times.
- Convection Zone (B): Situated above the radiative zone, this layer is characterized by the movement of plasma in convection currents. Hot plasma rises towards the surface, cools, and then sinks back down, transferring energy more efficiently than radiation alone.
- Photosphere (D): This is the visible surface of the Sun, the layer from which most of the light we observe originates. Features like granulation, caused by the convection currents below, are visible here.
- Chromosphere (A): Lying above the photosphere, the chromosphere is a layer of the Sun's atmosphere. It's generally transparent but can become visible as a reddish hue during total solar eclipses due to its emission lines.
- Corona (C): This is the outermost layer of the Sun's atmosphere, extending millions of kilometers into space. It is extremely hot but very low in density, and it is best observed as a faint halo surrounding the Sun during a total solar eclipse.
Determining the Correct Sequence
Based on the physical arrangement of the Sun's layers, the correct order starting from the core and moving outwards is:
- Radiative Zone (E)
- Convection Zone (B)
- Photosphere (D)
- Chromosphere (A)
- Corona (C)
This sequence is represented as E, B, D, A, C.
Let's examine the provided options:
| Option | Zone Sequence (Core to Outward) |
|---|---|
| 1 | C, A, B, D, E |
| 2 | C, B, E, A, D |
| 3 | E, D, B, A, C |
| 4 | E, B, D, A, C |
| 5 | [Not Provided] |
The sequence E, B, D, A, C, representing the Radiative Zone, Convection Zone, Photosphere, Chromosphere, and Corona respectively, matches Option 4.
Important Questions from Origin and evolution of Universe Solar system
- Despite its greater distance from the Sun compared to Mercury, Venus maintains the highest surface temperature of any planet in our solar system. Which of the following is the primary reason for Venus's extreme heat?
What was the name of the mega-ocean that surrounded the single continental mass before the continental drift as described by Alfred Wegener?
A huge collection of gas, dust and billions of stars is called a:
The Greenwich Mean Time is the local time at :
The force exerted by rotation of the earth is known as:
