True or false: light travels in straight lines if the medium it travels doesn't change
true
False
i cant ever find the answer to the question
Thr
True. Light travels in straight lines if the medium it travels through does not change. This phenomenon is known as rectilinear propagation of light.
Explaining how to arrive at this answer:
To determine whether light travels in straight lines, we can apply the principle of the rectilinear propagation of light. According to this principle, light travels in straight lines in a uniform medium. This means that if light passes through a medium that remains constant and doesn't change, it will continue to travel in a straight line.
This principle can be observed in our daily lives. For example, when light passes through a clear glass window, it continues to travel straight and doesn't change its path unless it encounters a different medium or is subjected to external factors like reflection or refraction.
Therefore, if the medium through which light travels doesn't change, it will continue to propagate in a straight line. So, the statement is true.