wheat are the common properties and characteristic of light
Sir W. Crookes discovered the Properties of Light in 1879.
one of the properties of light is that light travel at straight line
Not exactly - light has wave properties. That means that it behaves like a wave.
The simplest answer is that light consists of particles with wave properties. Elementary particles also have wave properties. This is how light travels.
optics
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The properties of light that define it as a wave are interference, diffraction, and polarization. These behaviors can only be explained by light as a wave phenomenon, where it exhibits characteristics typical of waves such as wavelength, frequency, and speed.
The scientific study of light and its properties is called "Optics." This field explores how light interacts with matter and how it can be manipulated for various applications.
it has the properties of a wave (:
it has the properties of a wave and a particle