When ordinary light is incident on a number of glass plates, stacked one at top of other then :

a)
The refracted light is partially polarized with vibrations perpendicular to the plane of vibration. The refracted light is partially polarized with vibrations perpendicular to the plane of vibration.

b)
The reflected light is completely polarized

c)
The refracted light is partially polarized

d)
The reflected light is almost completely polarized with vibrations parallel to plane of incidence

Correct answer is option 'B,D'. Can you explain this answer?

Question

When ordinary light is incident on a number of glass plates, stacked one at top of other then :

a)
The refracted light is partially polarized with vibrations perpendicular to the plane of vibration. The refracted light is partially polarized with vibrations perpendicular to the plane of vibration.
b)
The reflected light is completely polarized
c)
The refracted light is partially polarized
d)
The reflected light is almost completely polarized with vibrations parallel to plane of incidence

Correct answer is option 'B,D'. Can you explain this answer?

Answer

Reflection and Refraction of Light on Stacked Glass Plates

Introduction:
When ordinary light is incident on a number of glass plates stacked one on top of the other, both reflection and refraction occur. The behavior of the light depends on the angle of incidence, the properties of the glass plates, and the polarization of the incident light.

Reflected Light:
- Statement: The reflected light is completely polarized.
- Explanation: When light is incident on a glass-air interface at a certain angle called the Brewster's angle, the reflected light becomes completely polarized. The polarization of the reflected light is parallel to the plane of incidence.

Refraction of Light:
- Statement: The refracted light is partially polarized with vibrations perpendicular to the plane of vibration.
- Explanation: When light passes through a glass plate, it undergoes both refraction and partial polarization.
- The refracted light consists of two components: ordinary and extraordinary rays. The ordinary ray follows the usual laws of refraction, while the extraordinary ray experiences a different refractive index due to birefringence in the glass plates.
- The extraordinary ray is partially polarized with its vibration perpendicular to the plane of incidence. This polarization arises due to the differential phase shift experienced by the ordinary and extraordinary rays.
- Therefore, the refracted light is partially polarized with vibrations perpendicular to the plane of vibration.

Summary:
- The reflected light is completely polarized with vibrations parallel to the plane of incidence.
- The refracted light is partially polarized with vibrations perpendicular to the plane of incidence.

It is important to note that the degree of polarization depends on the angle of incidence, the properties of the glass plates, and the wavelength of the incident light. The answer provided in the question (option B, D) is correct, as it accurately describes the polarization characteristics of the reflected and refracted light in this scenario.

Similar Physics Doubts

When ordinary light is incident on the upper surface of a glass slab at the polarizingangle then

In passing plane polarized light through a quarter wave plate, the transmitted light was also plane polarized. Which of the following might be true?

On passing plane polarized light through a quarter wave plate, the transmitted light was elliptically polarized. This implies

A beam of plane-polarized light falls on a polarizer which rotates about the axis of the ray with angular velocity ω = 22 rad/sec. Find the energy (mJ) of light passing through the polarizer per one revolution if the flux of energy of the incident ray is equal to φ = 14 mω.

Top Courses for Physics

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams