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प्रश्न
What makes the Sun so hot?
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उत्तर
The Sun is a large hot gaseous body. It is 1.3 million times bigger than Earth. The surface temperature of the Sun is about 6000°C. In the core of the Sun, the temperature is estimated to be about 20,000,000°C. Such extremely high temperature is produced by the conversion of hydrogen into helium by the process of fusion. This process releases tremendous amounts of energy and Sim radiates the energy in the form of electromagnetic radiation.
संबंधित प्रश्न
Why is the earth called a watery planet?
Short Answer Question:
Distinguish the earth from the other planets in one important aspect.
Fill in the blank:
___________is the major reservoir of carbon on the earth.
Distinguish between a planet and a star.
Distinguish between the following pair.
Periodical and Non-periodical comets
Which planet has the largest number of satellites?
Or
Name the largest known satellite of any planet.
Why is the following planet not inhabitable?
Saturn
Who am I?
You can see me from the earth but the lighted part of me that you see changes every day.
The line which divides day and night on the Earth’s surface is ______.
Consider the following statements
Statement I: The earth is inclined at 32 1/2°angle.
Statement II: The specific gravity of Saturn is more than that of water.
Which of the statement (s) is/are true
