POLARIZATION OF LIGHT AND VERIFICATION OF MALUS LAW SK045
Exp-1 To measure the light intensity of plane polarized light as a function of the analyzer position.
Exp-2 To verify Malus law.
Exp-3 To verify inverse square law.
- Pin hole photo detector.
- He-Ne laser with in-built power supply.
- Optical bench with central support.
- Transversal saddle for Y-axis motion.
- Polarization
- Malus law
- Polarizer
- Analyser
- Electric field of light
Principle and Working :
When a light beam passes through a polarizer filter, it gets linearly polarized. When this linearly polarized light passes through analyzer, its intensity depends on the angular position of the analyzer. The maximum light intensity is transmitted when the optical axis of polarizer and analyzer coincide. The intensity of transmitted beam depends on the angular position between the optical axis of the polarizer and analyzer (θ) and is defined by Malus law as I=I0 cos2θ where I0 is the intensity of incident light.
Further the intensity of light depends on the distance between the source and the detector and is defined by the inverse square law.
Contents:
| Cat No. | Item Name | Qty. |
| R3891 | He-Ne laser | 1 |
| SL215 | Optical bench, 1.5m | 1 |
| LP18 | Connecting leads pair 1m | 1 |
| SE067 | Digital multimeter | 1 |
| SL801 | Polarizer / Analyzer | 2 |
| SL436 | Transverse saddle | 1 |
| SN1016 | Photo detector | 1 |
| SN204 | Flexible plug lead red | 1 |
| SN201 | Flexible plug lead black | 1 |
- He-Ne Laser R3891
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SPECIFICATIONS Wavelength : 632.8nm
Working Current : 4mA ~ 6mA)
Output Power : > 2mW
Working Time : > 8 hrs.
Working Voltage : 220V AC, 50Hz
Input Power : <2 W
Dimension : 300x62x82 mm
Weight : 1.5 kg (approx.)
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- Optical Bench SL215
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SPECIFICATIONS Material : Aluminium alloy
Type : Hexagonal section
Scale : 0-150cm
Least count : 1mm
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- Polarizer / Analyzer SL801
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SPECIFICATIONS Angle : Adjustable (0°-90°)
Aperture : 21mm dia.
Frame : 130mm dia., to avoids scattering of lights
Rod : 10 mm dia.
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- Photo Detector SN1016
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SPECIFICATIONS Detector : Silicon photocell
Terminals : 4mm safety socket
Aperture : 1mm
Rod : 10mm dia.
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- Digital Multimeter SE067
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SPECIFICATIONS Resistance : 200W, 2000W, 20k, 200k & 2000k W.
D.C.Voltage : 200 & 2000 mV
: 20, 200 & 600 V
A.C.Voltage : 200 & 600 V
D.C.Current : 200 & 2000 mA
: 20 & 200 mA
: 10 A
Testing : Diode & transistor
Battery : 9V
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- Transverse Saddle Sl436
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SPECIFICATIONS Material : Aluminium
Locking : Spring loaded
Motion : X-Y axis
Holder : 10mm dia.
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Light & Optics Experiments
- Spectrometry Kit
- Michelson Interferometer
- Precision Interferometer (Imported)
- Holography & Interferometry Kit (Imported)
- Two Beam Interference
- Newton's Rings Apparatus
- Advanced polarimeter
- Laurent's Half Shade Polarimeter
- Polarization of Light & Verification of Malus Law
- Polarization of Light by Half-Wave Plate
- Polarization of Light by Quarter-Wave Plate
- Kerr Effect
- Faraday Effect
- Diode Laser Kit
- Diode Laser Diffraction Experiment
- He-Ne Laser kit
- Focal Length of Combination of Lenses Using Nodal Slide Assembly
- Optical Fiber Kit
- Optics Experiment Kit
- Resolving Power of a Telescope
- Speed of Light
- Particle Size Measurement
- Photoconductivity