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What are planets ?...

What are planets ?

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Statements: All stars are planets. All planets are glaxies Conclusions: I. All galaxies are planets II. All starts are glaxies.

There are two planets and the ratio of radius of the two planets is k but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocities ?

Which planet is known as the red planet?

If the mass of a Planet is eight times the mass of the earth and its radius is twice the radius of the earth, what will be the escape velocity for that planet ?

Which planet is called red planet?

A planet has a mass of 2.4xx10^(26) kg with a diameter of 3xx10^(8) m. What will be the acceleration due to gravity on that planet ?

What name is given to the celestial body which revolves around a planet ?

What are inner planets and outer planets ? Name them .

LAKHMIR SINGH & MANJIT KAUR-STARS AND THE SOLAR SYSTEM-EXERCISE
  1. What is Solar System ?

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  2. Name the different types of celestial objects which are members of the...

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  3. What are planets ?

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  4. How many planets are there in the Solar System ?

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  5. Name all the planets of the Solar System in the order of their increas...

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  6. What are inner planets and outer planets ? Name them .

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  7. Why is it difficult to observe the planet Mercury ?

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  8. State one way in which the planets can be distinguished the stars in t...

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  9. What are the various environmental conditions available on Earth which...

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  10. State one important consequence of the following : Rotation of Earth ...

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  11. State one important consequence of the following : Motion of tilted E...

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  12. What is a satellite?

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  13. Name the natural satellite of the Earth.

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  14. Moon does not have light of its own. How are we able to see the Moon ?

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  15. Name the constellation which appears to have the shape of : a big be...

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  16. What is asteroids ? Where are they located ?

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  17. State two difference between the artifical satellite of the Earth and ...

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  18. What is an artificial satellite ?

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  19. Name any two artificial satellite launched by our country.

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  20. State three uses of artificial satellites.

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