Question

please answer Q8 , 11 , 12 , 13

98: What is the approximate solar irradiance on a clear day with the Sun at zenith? (a) I W.cm2 (b) 0.01 W.cm (c) 0.1 W.em2 99: What are the three components of solar radiation on an inclined plane? Rad it 1- beam r adition 2- Albedo, piFFuse 010: What are the main physical processes that determine the attenuation of solar radintion in radition Wth airswater gnd dust the atmosphere? interaction 911: Which of the following statements are true? +he The average daily irradiation over the year is maximum at the equator. a. b. Regions with high latitude experience relatively high amount of diffuse radiation. c. The seasonal variation of daily solar irradiation is approximately independent of the latitude. 912: What are the main quantities that characterize the (a) yearly and (b) daily apparent motion of the Sun? 913: What is the maximum solar elevation at a site with latitude 40° N and when does it oceur? Tutorial-2

Answer 1

8- c

11- a-True

b-True

c- False

12- The earth's elliptic orbit characterize the yearly apparent motion and the earth's axis declination of 23.5 degrees characterize the daily apparent motion of the sun with the earth rotating eastward.

13- The maximum solar elevation angle of an area at 40 degrees N is 73.05 degrees as calculated by calculator and it occurs during the month of June.