论文部分内容阅读
许多资料上有涉及黑洞的试题,但答案不同,笔者谈谈自己的看法. 试题已知质量为m的质点和质量为M、半径为R的星体中心相距r(r≥R)时,引力势能EP=-G(Mm)/r.有一些超高密度的星体,其巨大引力使得光子也无法逃逸出去,即它所发生的电磁波都无法向外传播,这类星体叫黑洞.若黑洞的质量等于太阳质量M,试估算该黑洞半径至多是多大?(本题为第五届全国中学生物理竞赛决赛试题)
Many materials have questions involving black holes, but the answer is different. The author talks about his own opinion. The problem is known when the particle with mass m and the center of mass with radius M and radius R are separated by r (r≥R). EP=-G(Mm)/r. There are some ultra-high-density stars whose great gravitational force makes it impossible for photons to escape. That is, the electromagnetic waves that they produce cannot be propagated outward. Such stars are called black holes. If the quality of black holes Equal to the mass of the sun M, try to estimate the radius of the black hole is at most (this question is the fifth national high school students physics competition finals questions)