Which of the following is false for a universe with the curvature parameter k=-1 (open)?The recommended time to answer this question is 2.5 minutes.Soru 20YanıtIn such a universe the circumference of the circle is longer than 2πr.Such a universe is unbounded.Such a universe is infinite.In such a universe, the sum of the angles of the triangle is less than 180°.In such a universe, lines that were initially parallel get closer to each other.
Question
Which of the following is false for a universe with the curvature parameter k=-1 (open)?The recommended time to answer this question is 2.5 minutes.Soru 20YanıtIn such a universe the circumference of the circle is longer than 2πr.Such a universe is unbounded.Such a universe is infinite.In such a universe, the sum of the angles of the triangle is less than 180°.In such a universe, lines that were initially parallel get closer to each other.
Solution
The false statement for a universe with the curvature parameter k=-1 (open) is: "In such a universe, lines that were initially parallel get closer to each other."
In an open universe, lines that start off as parallel will diverge or move apart from each other, not get closer. This is due to the negative curvature of the universe. The other statements are true for an open universe.
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