Solar Power in Vancouver: Winter vs Summer · CAP 2012 #13
Physics · thermodynamics
Problem
Vancouver's latitude is about 49°, and Earth's axial tilt is about 23°. The power delivered by the Sun reaching a horizontal surface in Vancouver at noon differs in winter and summer. What is the approximate ratio of this quantity measured in winter, compared to that measured in summer?
a) 1:2
b) 1:3
c) 1:4
d) 1:5