$A$ train is moving towards north. At one place it turns towards north-east. Here,we observe that:

  • A
    The radius of curvature of outer rail will be greater than that of the inner rail
  • B
    The radius of curvature of inner rail will be greater than that of the outer rail
  • C
    The radius of curvature of the outer and inner rails will be the same
  • D
    The radius of curvature of inner rail will be infinite

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