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प्रश्न
If you are the sun, write about your properties in your own words.
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उत्तर
Following are the various properties of me as a Sun:
- I am approximately 4.5 billion years old.
- I have my own heat and light.
- I am made up of hot gases. Hydrogen contributes to 72% of my mass while helium about 26%. The rest 2% is associated with elements heavier than helium.
- My mass and radius are about 2 × 1030 and 695,700 km, respectively.
- My surface temperature is about 5800 K and the temperature at the centre is 1.5 × 107 K.
संबंधित प्रश्न
Choose the correct option to complete the statement given below:
The sun is ______.
The speed of Sun in km/s is______.
The rotational period of the Sun near its poles is ______.
A man weighing 60 kg in the Earth will weigh 1680 kg in the Sun. Why?
The ratio of ______ of the periods of any two planets is equal to the ratio of their ______ semi-major axis from the Sun.
The planets are revolving around the sun because of the gravitational force of attraction between them.
The Pole star is not visible from the southern hemisphere.
Assertion: Sun is a medium-sized star.
Reason: Sun is situated at the center of the solar system.
Assertion: At the pole, the value of acceleration due to gravity (g) is greater than the equator.
Reason: Earth rotates on its axis in addition to revolving around the sun.
Why are we able to see the Moon even though it is not a luminous body?
