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Assertion : An astronaut in an orbiting ...

Assertion : An astronaut in an orbiting space station above the earth experience weightlessness.
Reason : An object moving around the earth under the infuence of earth's gravitational force is in a state of 'free fall'

A

If both assertion and reason are true and the reason is a correct explanation of the assertion.

B

If both assertion and reason are true but reason is not a correct explanation of assertion.

C

If assertion is true, but the reason is false.

D

If assertion is false but the reason is true.

Text Solution

Verified by Experts

The correct Answer is:
A
Force acting on astronaut is utilized in providing necessary centripetal force, thus he feels weightlessness, as he is in a state of free fall.
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Knowledge Check

  • An object moving the earth under the influence of Earths gravitational force is in a state of free - fall.

    A
    Statement -1 is True, Statement -2 is True, Statement 2 is a correct explanation for Statement -1
    B
    Statement -1 is True, Statement for Statement -2 is True , Statement - 2 is NOT a correct explanation for Statement -1`
    C
    Statement -1 is True, Statement -2 is False
    D
    Statement -1 is False, Statement -2 is True

  • An astronaut. inside an earth satellite, experiences weightlessness because

    A
    no external force is acting on him
    B
    he is falling freely
    C
    no reaction is exerted by the floor of the satellite
    D
    he is far away from the earth's surface

  • An object thrown into space horizontally under the action of earth's gravity is called a

    A
    projectile
    B
    trajectory
    C
    spaceship
    D
    none of these

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    The astronaut in a satellite, moving in a circular orbit around the earth, experiences a feeling of weightlessness because

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