Define rectilinear propagation of light.
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Answers
Answer:
Light tends to move in a straight direction, here.
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Answer:
Explanation:
Light is always observed to travel in a straight line. If, for example, we look at a light source through a long pipe with openings at both ends, the light source is easily visible. However, if we bend this pipe in such a way that it is no longer straight and then try to look at the light source, we will find that the light source is no longer visible. This proves the property that light has of always travelling in a straight path. The property of light always travelling in a straight line is called rectilinear propagation of light.
Light is an electromagnetic wave. This means that it is composed of an electric field and a magnetic field. These electric and magnetic fields are perpendicular to each other. These waves have their own period and power generated, and this also decides the wavelength and observed colour of the light.