(ii) a 1.0-l volume of air initially at 3.5atm of (gauge) pressure is allowed to expand isothermally until the pressure is 1.0atm. it is then compressed at constant pressure to its initial volume, and lastly is brought back to its original pressure by heating at constant volume. draw the process on a pvdiagram, including numbers and labels for the axes.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!