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Physics
If the sun were suddenly replaced by a block hole of one solar mass, what would happen to the earth's orbit immediately after the replacement ?
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Q. If the sun were suddenly replaced by a block hole of one solar mass, what would happen to the earth's orbit immediately after the replacement ?
Gravitation
A
The earth would spiral into the black hole
B
The radius of the earth's orbit would be unchanged, but the period of the earth's motion would increase
C
The radius of the earth's orbit would be unchanged, but the period of the earth's motion would decrease
D
Neither the radius of the orbit nor the period would change
Solution:
As the mass of earth remain same, nothing would happen because all gravitational forces remain same.