Question

The concentric circles in a sun-path diagram represent \(\underline{\hspace{2cm}}\).

• A. Altitude angle
• B. Azimuth angle
• C. Day of the year
• D. Hour of the day

Hint:

Altitude → height of sun; Azimuth → horizontal direction of sun. Concentric circles always indicate altitude bands.

Answer 1

The Correct Option is A

A sun-path diagram graphically represents the position of the sun in the sky throughout the day and across different seasons.
The diagram uses concentric circles to show different values of the solar altitude angle, which is the angle of the sun above the horizon.
Each circle corresponds to a constant altitude, with the innermost circle representing the highest altitude (near solar noon) and the outermost the lowest altitude (near sunrise and sunset).
The azimuth angle is represented along the perimeter (horizontal direction), while hours of the day appear as curves that connect points of equal solar time.
Thus, the circles in the diagram specifically represent the altitude angle.