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31
If the distance between two objects exceeds the normal distance by 6 times, the force of gravity will be-
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Answer: Option C
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32
Who among the following anticipated Newton by declaring that all things gravitate to the Earth?
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Answer: Option D
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33
F = GM m/d2 what is G called in the formula?
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Answer: Option A
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34
Suppose the gravitational force changes inversely from the n power of the distance, then the time period of the planet revolving around the Sun in a circular orbit of R radius, will be proportional-
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Answer: Option C
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35
Which of the following pairs is correctly matched?
List-I List-II
a. Radium 1. Alexander Fleming
b. Penicillin 2. Madam Curie
c. X-ray 3. Edward Jenner
d. Smallpox 4. W.K. Roentgen
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Answer: Option A
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36
A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will
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Answer: Option A
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37
If pieces of equal size of woods, wax and iron falling from a same height, which one will reach the surface of the Earth first?
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Answer: Option D
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38
Who gave the theory of gravity?
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Answer: Option C
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39
Where is the center of gravity of an object hanging freely?
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Answer: Option B
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40
The Law of Gravitation was given by . . . . . . . .
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Answer: Option B
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