Figure 1 shows the sun's path at different times of the year A, B and C. The sun is on the middle path at A, upper path at time B and lower path at C. A B C Figure 1: Variation of the sun's path across the sky for different times of a year (A, B, C) a) Referring to Figure 1, briefly explain why the tilt angle for a solar collector should be changed as the time of the year changes across the times A to C. Also, explain how the tilt angles compare to each other for the different times