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A Vector is Not Changed If - Physics


A vector is not changed if


  • it is rotated through an arbitrary angle

  • it is multiplied by an arbitrary scalar

  •  it is cross multiplied by a unit vector

  • it is slid parallel to itself.

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it is slid parallel to itself.

A vector is defined by its magnitude and direction. If we slide it to a parallel position to itself, then none of the given parameters, which define the vector, will change.
Let the magnitude of a displacement vector ( \[\vec{A}\] )  directed towards the north be 5 metres. If we slide it parallel to itself, then the direction and magnitude will not change.

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HC Verma Class 11, 12 Concepts of Physics 1
Chapter 2 Physics and Mathematics
MCQ | Q 1 | Page 28
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