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Astronomy and Space Science

19. 

The first satellite launched by India is

A. Bhaskara B. Varuna C. Aryabhatta D. Agni

Answer : C. Aryabhatta

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20. 

MAtch List I correctly with List II and select your answer using the codes given below:

List I List II
a) Exosphere 1) Space surrounding the earth or any celestial body
b) Magnetosphere 2) Earth's atmosphere about 400 km above the earth's surface
c) Photosphere 3) Earth's atmosphere about 11 km above the earth's surface
d) Stratosphere 4) Visible portion of the sun

A. a-1 ,b-2 ,c-3 ,d-4 B. a-2 ,b-1,c-4 ,d-3 C. a-4 ,b-1 ,c-2 ,d-3 D. a-1 ,b-4 ,c-3 ,d-2

Answer : B. a-2 ,b-1,c-4 ,d-3

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21. 

One of the following is used for satellite communication in High Orbit?

A. Radio waves B. Micro waves C. Light waves D. All of these

Answer : B. Micro waves [Radio waves for Low orbit]

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22. 

Asia's biggest astronomical telescope is at

A. Kavalur B. Kodaikanal C. Bangalore D. New Delhi

Answer : A. Kavalur

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23. 

Which one of the following is NOT an astronomical object?

A. Pulsar B. Brittle star C. Black Hole D. Quasar

Answer : B. Brittle star

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24. 

Artificial satellite are used for

A. TV transmission B. Detecting minerals C. Space research D. All the three

Answer : D. All the three

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