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1: Of the following, the only object that would be visible in a perfectly dark room would be a mirror. any light-colored surface a red hot wire. 2: The shadow of a cloud on the ground is the same size and shape as the cloud itself because the sun's rays are practically parallel highly diverging not very numerous. 3: What is polarized light?Light from a Polaroid camera Light filtered in one direction Light that consists of all colors 4: What makes laser light coherent?It gives off only one color Electrons stimulated to give light all at once The ruby rod has a mirror on one end 5: Why do CD players use laser light?It is cheaper than high intensity bulbs It can be focused to a small point on the CD Laser light responds to music better
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