All Textbook Topics - Light - Reflection - When you trace virtual light rays on the other side of a mirror, they must carry on in a straight line from the real rays that are going into the eye

When you trace virtual light rays on the other side of a mirror, they must carry on in a straight line from the real rays that are going into the eye

You can see in the picture that the virtual light ray carries on exactly, ruler straight, from the real light ray coming towards the eye.

When you draw a diagram of this, you must use a ruler to make sure the virtual ray carries on ruler straight when you follow back the real ray going into the eye:

So you end up with this, correct, diagram:

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