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प्रश्न
What are the types of comets and on what basis are they classified?
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उत्तर
Comets are the solar system bodies that are usually spherical in shape and develop tails when they come near the Sun. Comets become visible when they are close to the Sun and the Earth.
Comets can be categorized into two groups depending on how long it takes to complete one revolution around the sun. These are:
- Long Period Comets: These comets complete one revolution around the Sun in 200 and more years. The Great Comet of 1843 is one of the examples of this type.
- Short Period Comets: These comets complete one revolution around the Sun in years less than 200. One of the examples is Halley's Come, which takes 76 years to complete the revolution. It last appeared in 1985.
संबंधित प्रश्न
Fill in the blanks:
Asteroids are found between the orbits of ________ __ and _________.
Mark the following statement as true (T) or false (F).
INSAT is an artificial satellite. ( )
Comets are made of ______.
Fill in the Blanks
Meteoroids heat up and burn due to ______.
What are asteroids?
Match the following
| 1. | Rohini | GSLV-Mark III |
| 2. | GSAT-14 | GSLV Mark III M1 |
| 3. | GSAT-19 | SLV-3 |
| 4. | Chandrayaan-2 | PSLV-XL C25 |
| 5. | Mangalyaan | GSLV-D5 |
Which country launched the world’s fi rst artifi cial launch vehicle?
Give the expansions of PSLV and GSLV
The closest planet to the Sun is ______.
The first artificial satellite is ______.
