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
Consider the following statements relating to our Solar System :
1. Saptarishi forms part of constellation Big Bear.
2. Saptarishi forms part of the constellation Ursa Major.
3. Asteroids Belt lies between orbits of Mars and Earth.
4. The largest asteroid is Ceres.
How many of the statements given above are correct?
Which of the following statements relating to solar system is / are correct?
1. Venus and Uranus rotate opposite to the direction of rotation of Earth
2. Venus is the nearest planet to Earth
Select the correct answer using the code given below :- Which one of the following represents the inner planets?
The following item consists of two statements, Statement I and Statement II.
Examine these two statements carefully and select the correct answer using the code given below :
Statement I : The Indian Ocean Tsunami of 2004 occurred along a subduction zone along west coast of Sumatra
Statement II: Along the Sumatra coast the Indo-Australian Plate converges below the Eurasian Plate- Which one among the following is not a luminous object?
