Why don't the sun's rays fall perpendicular at all places on the Earth ? Class 7, Pls give accurate answers, Useless answers will be reported
Answers
Sun rays do not fall perpendicular on all areas of the earth because the earth is round. The sun is placed far away so the light rays projecting from the sun tend to reach the earth in almost parallel means.
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Answer...............
Because the only way for that to happen is to have all points on the earth be equidistant from the sun. And Everybody Dies™.
This horrendously un-scaled “drawing” shows the sun and the Earth (use your imagination).
You see that ray hitting the earth straight on? Well, that’s falling perpendicularly. See that one hitting the Earth at a sideways glance? That’s not. That’s an obtuse angle, and we’re always going to have that, because the earth is round. The sun is never going to be right above, for example, the poles.
So how could we have two spheres and have everything perpendicular?
Like this! (But imagine it in three dimensions, like this .)
If the Earth surrounds the sun, then every point on the earth is the same distance from the sun as every other point.
This wouldn’t be that great, though. It’s always noon in there. The sun is always right overhead. But we don’t live on a giant hollow superstructure surrounding the sun, so sometimes the sun goes down and I get to go to sleep. Also, the only gravity for someone inside the sphere would come from the sun, because gravity inside of a uniform hollow sphere zeroes out. So, you (and everyone else in there) would fall into the sun, and not long after, the sun would drift into the giant hollow earth. That would probably do some damage.
So, yeah, if the sun’s rays hit the earth everywhere perpendicularly, and the earth is destroyed.
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