Question

look at the photograph you cannot see Sun but you can easily work out where it is in the sky explain how you could use a ruler to work out the sun's position in the sky make a sketch to show your idea ​

Answer 1

Answer:

You can also measure the actual size of the sun with a ruler, tape measure and small mirror. It does require a very small amount of math, but it is great for a school project. Just project the light of the sun from a small mirror onto a darkened wall.

Explanation:

Then measure the diameter of the projected image (d) and the distance between the wall in the mirror (l).

These are in the same ratio as the actual diameter of the sun (D) to the true distance to the sun (L).

So you can set up a simple equation and solve:

D = (d/l)*L

Be sure that your measurements for d and l are in the same units. Then if your distance to the sun (L) is in miles, your resulting value for the diameter of the sun (D) will be in miles as well.

This is a variation on the “pinhole” projection method and provides an actual image of the sun if the size of the mirror is very small compared to the distance of projection. A quarter-inch mirror at about 16 – 20 feet is good. The exact shape of the mirror is unimportant. If you are too close, or the mirror is too large, the projected image will not be a real image of the sun, so be careful with this. Also be careful not to look into the reflected beam or allow any child or animal to do so. It would like looking at the sun directly and can ruin your eyes.