Particulate Nature of Matter B.2 Greenhouse Effect (id: c115812b9)

本题目来源于试卷: Particulate Nature of Matter B.2 Greenhouse Effect，类别为 IB物理学

[单选题]
The albedo at the poles of Earth 3*jrb:yqtz: o during a particulamx- b4(vb:s udr day is 0.8. What is the value of the absorbed intensity x(4mb -dvus:b if the solar intensity is 700 $W{m}^{-2}$?

A. 140$W{m}^{-2}$
B. 560$W{m}^{-2}$
C. 875$W{m}^{-2}$
D. 3500$W{m}^{-2}$


参考答案:  A


本题详细解析:
Explanation:

Albedo = 0.8 means that 80% of incident intensity is reflected. Therefore 20% is absorbed.

(0.2)(700)=140 $W{m}^{-2}$

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