既然光没有质量 ,为什么在黑洞的引力下光却会被吸引
推荐回答(5个)
光是电磁波 是没有质量的 正是由于没有质量 它才能达到光速 有质量的物质速度越高 质量会增大(极高的速度) 增加它的速度就需要更大的能量 接近光速时 质量会变得无穷大 会需要无穷大大的能量 所以光是没有质量的 它本质是电磁波 光还具有粒子的性质 由于是电磁波所以具有能量
光是在空间里传播的由于黑洞巨大的质量把周围的空间极度扭曲(我只是个学法律的二专生 错了不要怪我)成了漩涡 光在这个漩涡里传播 反射不回来 所以给人光被吸进黑洞的感觉 是光跑到黑洞的视界(黑洞的边界)内才传不出来的不是被吸进去的 由于黑洞视界附近的空间也被扭曲所以光线经过时在被扭曲的空间传播 所以我们能穿过黑洞看到背后的星空 安照逃逸理论 黑洞的逃逸速度超过光速所以黑洞本身发的光无法传播出来(按我的理解仍然是由于空间被极度扭曲 黑洞自己发的光在扭曲的空间里出不来) 给人以光本身被吸进去的假象 其实是光的传播介质空间被扭曲的结果
光在静止时不算有质量,但是运动时有能量。质量即是能量,能量的一部分就是质量。当光有速度时能量为hv,其实是可以转换为质量的。这么想,光可以分裂为正负电子,那么正负电子都是有质量的(p=mc^2),说明能量可以和质量转换。所以你也可以认为光在运动中是有质量的。
是光的能量被黑洞吸收了
假如有一个巨大的棉花团,那么可以吸收声音的大部分能量,声音变得很小,同样声音是没有质量的。
并且光的粒子性说的是能量而不是质量
黑洞可不是个好东西!管你有质量无质量的能吃的通吃!
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