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Physics Unit33: Astrophysics and Cosmology (id: c21af7245)

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admin 发表于 2024-2-6 21:31:05 | 显示全部楼层 |阅读模式
本题目来源于试卷: Physics Unit33: Astrophysics and Cosmology,类别为 通用国际物理

[单选题]
The Sun has apparent brightness at Ea4()7evlqbo 9 kn .lfq fi*xxd4rthbuzqj 7 vn *f,89pi:av ($1.5 \times 10^{8} \; km$ away) of B. What would be the apparent brightness of the Sun at Pluto, which is $6.0 \times 10^{9} \; km$ from the Sun?

A. $0.25 \; B$
B. $0.063 \; B$
C. $0.025 \; B$
D. $0.00063 \; B$


参考答案:  D


本题详细解析: 暂无

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