The evidence that light travels in a straight line.
Explanation of Solution
Introduction:
Light has speed is
If a body blocks light from a source, then it creates a shadow which is an area which is dark. The shape of the object that obstructs the light defines the shadow’s shape. On the other hand, from the scattering of light, it can be easily seen that light travels in a straight line.
In the case of scattering, many objects present in the atmosphere possess the ability to disperse light beams. Light beams are scattered in every direction. For certain cases, the dispersal occurs from extremely large particles in the air (such as particles of dust). For other instances, the scattering is thought to be due to interactions between the incident light and airborne molecules.
In the case of absorption, many objects present in the atmosphere possess the capacity to absorb light beams.
Conclusion:
Hence, some of the evidence of light travelling in a straight line are shadow, scattering of light, absorption.etc
Chapter 16 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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