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In which o the following cases the centr...

In which o the following cases the centre of mass of a rod is certainly not at its centre?

A

The density continuously increases-from left to right.

B

The density continuously decreases from left to righ.

C

The density decreases from left to right upto the centre and then increase

D

The density increases from left to right upto the centre and then decrease.

Text Solution

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The correct Answer is:
A, B
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Knowledge Check

  • in which fo the following cases the centre of mass of a rod is certainly not at its centre? (A) The density continuously increases from left ot right (B) The density continuously decreases from left to right (C) The density decreases from left to right up to the centre and then increases (D) The density increases from left to right up to the centre and then decreases Select correct alternative.

    A
    Only (A)
    B
    Only (A) and (B)
    C
    Only (B)
    D
    Only (C) and (D)

  • In which of the following cases the centre of mass of a system is certainly not at its centre ?

    A
    A uniformly shaped rod whose density continuously increases from left to right
    B
    A uniformly shaped rod whose density is constant throughout
    C
    A uniformly shaped rod whose density decreases from left to right upto the centre and then increases
    D
    A uniformly shaped rod whose density increases from left to right upto the centre and then decreases

  • In which of the following cases, the centre of mass of rod may be its centre ? (1) The linear mass density increases continuously from left to right. (2) The linear mass density decreases continuouly from let to right. (3) The linear mass density decreases from left to right up to centre and then increases. (4) The linear mass density increases form left to right upto a certain point (may not be the centre) and the decreases from the point till the end.

    A
    1,2,3,4
    B
    3,4
    C
    only 3
    D
    None of the above

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