The owner of a van installs a rear-window lens that has a focal length of -0.301 m. When the owner looks out through the lens at a person standing directly behind the van, the person appears to be just 0.242 m from the back of the van, and appears to be 0.343 m tall.(a) How far from the van is the person actually standing?(b) How tall is the person?

a)= 1.2315m

b) =1.74m

Explanation: 1/F = 1/V -1/ U

F= -0.301

V=?

U=0.242

We are looking for V. So making V the change of subject of formula we have 1/V = -1/0.301 + 1/0.242

1/V = 0.812

V= 1.2315m

b) image height /object height = image distance /object distance

0.343/H = 0.242/1.2315

H = 0.343/0.197

H= 1.74m

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!