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physics-9-chapter-4-turning-effect-of-force-11
1.
What is the object called that revolves around a planet?
a) Satellite
b) Galaxy
c) Sun
d) Asteroids
2.
What are the objects called that are sent in space not by human beings?
a) Natural satellites
b) Artificial satellites
c) National satellites
d) Am plied satellites
3.
Around which, the moon revolves?
a) Earth
b) Sun
c) Stars
d) Mercury
4.
Which of the following is the natural satellite?
a) oon
b) Sun
c) Star
d) GPS
5.
Moon is a natural satellite of the...................?
a) Earth
b) Sun
c) Star
d) GPS
6.
What are the objects called that are sent in space by scientists?
a) Artificial satellites
b) Natural satellites
c) National satellites
d) Am plied satellites
7.
How many hour communication satellites take to complete their one revolution around the Earth?
a) 24 hours
b) 22 hours
c) 18 hours
d) 12 hours
8.
Which of the following satellites take 24 hours to complete their one revolution around the Earth?
a) Communication satellites
b) Experimental satellites
c) Geostationary satellites
d) Stationary satellites
9.
In how many hour earth completes its one rotation about its axis?
a) 24 hours
b) 22 hours
c) 18 hours
d) 12 hours
10.
What is the height of geostationary satellites?
a) 2,300 km
b) 3,80,000 km
c) 4,23,000 km
d) 80,000 km
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