Convex mirror has nagative focal tength
Concave mirror
has possitive focal lengther
LA Convex mirror has a focal length 18 cm)
producco
image on its axis
axis bcm away
from the mirror
Calculate the possition of the object
T
D
5T

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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