Although light waves can bend when passing through an extremely narrow opening or through a prism, generally speaking light travels in a straight line. Which of the following observations does NOT provide support for the general assertion that light travels in a straight line?

The midday sun appears brighter than the late afternoon sun.

Explanation

The midday sun appears brightest because that light travels through less of the atmosphere than at other times of the day. The fact that we see shadows demonstrates that light does not bend around solid objects, choices (1) and (2). The fact that our line of vision is straight also demonstrates that light travels in a straight path, choices (3) and (5).

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