Define Polarisation.

Polarization is a property of waves, like light, describing the direction of oscillation of electric or magnetic fields.

ANSWER : Polarization refers to a fundamental property of waves, including light and other electromagnetic waves, in the field of physics. It describes the direction in which the electric or magnetic fields of a wave oscillate.

Imagine a wave traveling through space as a series of oscillations, where the electric and magnetic fields fluctuate. In an unpolarized wave, these fields can oscillate in various directions perpendicular to the direction of wave propagation. However, when a wave is polarized, the fields oscillate predominantly in a specific direction.

Polarization can occur in different orientations: linear, circular, or elliptical. In linear polarization, the electric or magnetic fields oscillate in a straight line. Circular polarization involves the fields rotating in a circular motion, while elliptical polarization comprises a combination of linear and circular polarizations.

Polarized waves have important applications in many areas, such as optics, telecommunications, and 3D movie technology. They allow us to control and manipulate the characteristics of light, enabling the creation of devices like polarized sunglasses, liquid crystal displays (LCDs), and various optical filters.

Understanding polarization helps scientists and engineers harness the unique properties of waves and develop innovative technologies for various practical purposes.

Also Read : The position and the velocity of two particles are \(\vec{r}_1\), \(\vec{r}_2\) and \(\vec{v}_1\), \(\vec{v}_2\). Prove that they collide only if : \((\vec{r}_1 - \vec{r}_2) \times (\vec{v}_1 - \vec{v}_2) = 0\).

Also Read : Write down the Equations of Motion of Particle moving under Central Force.

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