题目内容
英国《新科学家(New Scientist)》杂志评选出了2008年度世界8项科学之最,在XTEJ1650-500双星系统中发现的最小黑洞位列其中,若某黑洞的半径R约45km,质量M和半径R的关系满足
(其中
为光速,
为引力常量),则该黑洞表面重力加速度的数量级为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004716863803.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004716878249.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004716894316.png)
A.1010 m/s2 | B.1012 m/s2 |
C. 1011 m/s2 | D.1013 m/s2 |
B
试题分析:据题意,由于已知黑洞的半径R和黑洞质量与半径关系为:
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004716909831.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004716925992.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004716941714.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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