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History of Astronomuy
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Question 1 of 10
1. Question
1 pointsWho calculated Earth’s circumference for the first time ?
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Eratosthenes calculated the Earth’s circumference for the first time

Question 2 of 10
2. Question
1 pointsPtolemy explained the phenomenon of retrograde motion by giving a theory that the planets move around the circumference of their own
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Planets revolve around Epicycle

Question 3 of 10
3. Question
1 pointsThe speed of celestial body around another body was decided by _____ in Ptolemy model of Universe
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The speed of celestial body was decided by Equant

Question 4 of 10
4. Question
1 pointsWho formulated the first Heliocentric model ?
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Copernicus formulated the first heliocentric model

Question 5 of 10
5. Question
1 pointsWho derived the laws of planetary motion ?
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Johanner Kepler derived the laws of planetary motion

Question 6 of 10
6. Question
1 pointswho invented the first reflecting telescope ?
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Isaac Newton invented the first reflecting telescope

Question 7 of 10
7. Question
1 pointsEpicycles move around the circumference of
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Epicycles move around the circumference of Deferents

Question 8 of 10
8. Question
1 pointsAncient Greeks believed, the earth to be the center of the universe. What do we call this model?
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The model was referred as Geocentric Model

Question 9 of 10
9. Question
1 pointsAncient astronomers used ‘epicycles’ to explain
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Ancient astronomers used ‘epicycles’ to explain Retrograde motion

Question 10 of 10
10. Question
1 pointsIn the model proposed by Nicolaus Copernicus’, which object was at the center of the universe?
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In Copernicus model, Sun was at the center of universe