as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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explain how light travels.
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light travels in waves, and is composed of both electrical and magnetic fields. these fields vibrate in a periodic manner, and the speed of light is determined by the frequency of these oscillations. light travels in straight lines, and when it is reflected, refracted, absorbed, or diffracted, its direction is changed. when light passes through transparent substances, such as glass or water, it might be bent, causing its speed and direction to change.
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