Question:
A polariser is used to:
A polariser is used to:
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In wave optics, light waves are transverse in nature. This means that the vibrating amplitudes of the wave are perpendicular to the direction of propagation of the wave, to restrict the vibrations in a plane is the phenomenon called the polarization of light.
Updated On: Sep 13, 2022
- increase intensity of light
- produce unpolarised light
- reduce intensity of light
- produce polarised light
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The Correct Option is A
Solution and Explanation
A polariser is used to increase intensity of light.
A polarizing filter transmits only the component of the wave parallels to its axis while reducing the intensity of any light not polarized parallel to its axis. Only the component of the EM wave that is parallel to the axis of a filter is passed. A polarise is used to produce polarized light and a Nicol prism is used to produce polarised light.
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Concepts Used:
Wave Optics
- Wave optics are also known as Physical optics which deal with the study of various phenomena such as polarization, interference, diffraction, and other occurrences where ray approximation of geometric optics cannot be done. Thus, the section of optics that deals with the behavior of light and its wave characteristics is known to be wave optics.
- In wave optics, the approximation is carried out by utilizing ray optics for the estimation of the field on a surface. Further, it includes integrating a ray-estimated field over a mirror, lens, or aperture for the calculation of the transmitted or scattered field.
- Wave optics stands as a witness to a famous standoff between two great scientific communities who devoted their lives to understanding the nature of light. Overall, one supports the particle nature of light; the other supports the wave nature.
- Sir Isaac Newton stood as a pre-eminent figure that supported the voice of particle nature of light, he proposed a corpuscular theory which states that “light consists of extremely light and tiny particles, called corpuscles which travel with very high speeds from the source of light to create a sensation of vision by reflecting on the retina of the eye”.