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Question

The glowing surface of the sun is called:

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
photosphere

Sun Glowing Surface Identification

The question requires identifying the specific name for the sun's visible, light-emitting outer layer.

Analyzing Solar Layers

We evaluate the given options to determine which best fits the description 'glowing surface':

  • Photosphere: This is the visible surface of the Sun, acting as the primary source of its light and heat. It is commonly referred to as the Sun's 'glowing surface'.
  • Lithosphere: This term refers to the solid, outer part of a terrestrial-type planet, star, or natural satellite. It is not a layer of the Sun.
  • Chromosphere: Situated above the photosphere, this layer is characterized by a reddish hue and is visible during solar eclipses. It is not the main source of the Sun's general light.
  • Corona: This is the outermost layer of the Sun's atmosphere, appearing as a faint halo during total solar eclipses. While extremely hot, it is very tenuous and not the primary 'glowing surface'.

Conclusion

The photosphere is the layer responsible for emitting the light we see, making it the Sun's glowing surface.

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