In a plane polarized light _________________?
Correct answer: C. vibration take place in a direction perpendicular to the direction of propagation of light
- A. vibration in all direction
- B. vibration in two mutually perpendicular directions
- C. vibration take place in a direction perpendicular to the direction of propagation of light
- D. no vibration at all
Explanation
In plane-polarized light, the electric field vibrates in one fixed direction that is perpendicular to the direction of propagation. Option b describes more than one transverse vibration direction, which is characteristic of unpolarized light. Students may choose b because all light vibrations are transverse, but plane polarization selects one transverse direction.
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About Optics
Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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