An object is placed at a distance of 10 cm from a convex mirror of focal length 20 cm Find the
position and nature of the image. Draw the ray diagram.

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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because if the tool that you are using is not balanced it there would be false mass.

the correct answer is "inertia"