| Date | November 2011 | Marks available | 1 | Reference code | 11N.1.SL.TZO.29 |
| Level | Standard level | Paper | Paper 1 | Time zone | no time zone |
| Command term | Question number | 29 | Adapted from | N/A |
Question
The power emitted as electromagnetic radiation by the Sun is approximately 4×1026 W. The radius of the orbit of Mars around the Sun is approximately 2×1011 m. What is the best estimate for the power incident on an area of 1 m2 at the radius of Mars’ orbit?
A. 103 W
B. 107 W
C. 1011 W
D. 1015 W
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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