POLARIZATION OF LIGHT BY QUARTER WAVE PLATE
DescriptionExp-1 To Measure the light intensity of plane polarised light as a function of the analyzer position.
Exp-2 To study the polarization of light by quarter wave plate.
Exp-3 To study the polarization of light by two quarter wave plate.
Exp-4 To verify the inverse square law.
Exp-5 To verify Malus-law.
Principle and Working :
A wave plate or retarder is an optical device that alters the polarization state of a light beam traveling through it. In the present setup, halogen light source with yellow light filter passes through a polarizer to produce linear polarized light. This polarized light then falls on a quarter wave plate L/4. The emergent light passes through analyser. It is investigated at different angles of L/4 plate ( 0°, 30°, 45°, 60° and 90°) between the optic axis of the wave plate and the direction of the incident light. The light intensity can be investigated with the analyser over the range -90° to +90°. At 0° and 90° of L/4 with respect to optic axis, the transmitted light is linearly polarized, at 45° it is circularly polarized, and at 30° and 60° it is elliptically polarized.
Contents:
| Cat No. | Item Name | Qty. |
| SL214 | Optical bench | 1 |
| SL436 | Transverse saddle | 2 |
| SW840 | Halogen light source | 1 |
| SL801 | Polarizer / Analyzer | 2 |
| CD499 | Quarter wave plate | 2 |
| IMC28 | Vernier light sensor | 1 |
| IMC25 | Vernier data logger | 1 |
| CD542 | Light sensor holder | 1 |
| SE080 | Power supply | 1 |
| R7903 | Yellow light filter | 1 |
|
|
|
|
|
|
