2. Questions Bank
  3. 9th Class
  4. Science
  5. Gravitation and Floatation

9th Class Science Gravitation and Floatation Question Bank Gravitation

  • question_answer
    A body is suspended from a spring balance kept in a satellite. The reading of the spring balance is \[{{W}_{1}}\] when the satellite goes in an orbit of radius R and \[{{W}_{2}}\] when it goes in an orbit of radius 2R. Which of the following is correct?

    A) \[{{W}_{1}}={{W}_{2}}\]

    B)        \[{{W}_{1}}<{{W}_{2}}\]

    C)        \[{{W}_{1}}>{{W}_{2}}\]

    D)        \[{{W}_{1}}\ne {{W}_{2}}\]          

    Correct Answer: A

    Solution :

    As the spring balance is kept in a satellite, it experiences weightlessness. So, \[{{W}_{1}}={{W}_{2}}=0\] Even if satellite changes its orbit, weight will not change.


You need to login to perform this action.
You will be redirected in 3 sec spinner