Apparatus for Measuring Speed of Light Optics Educational Kits

The Apparatus for Measuring Speed of Light Optics Educational Kits is designed for the accurate determination of the speed of light in air and other transparent media using the phase measurement method. The system utilizes an intensity-modulated semiconductor laser and measures phase delay to calculate the propagation speed of light with high precision. The apparatus employs a movable retroreflector positioned along a precision rail. By measuring the phase shift of the returned optical signal over different path lengths and applying data analysis techniques, students can determine the speed of light with excellent accuracy. In addition to speed of light measurements, the apparatus can also be used for refractive index determination of various transparent materials such as optical glass, quartz, and liquids when used with the optional media tube accessory. The system is ideal for university physics laboratories, optics education, and experimental studies involving light propagation and optical properties of materials. Physics Lab Experiments from Atico Exports.

Experiments and Applications :

Speed of Light Measurement :

• Determine the speed of light in air using phase delay measurements and optical path length variation.

Refractive Index Measurement :

• Measure the refractive index of transparent solids and liquids using the optional media tube setup.

Optical Signal Phase Analysis :

• Study phase shift techniques and their application in precision optical measurements.

Light Source :

• Semiconductor Laser

Laser Wavelength :

• 650 nm

Laser Output Power :

• < 3 mW

Rail Length :

• 0.6 m

Signal Modulation Frequency :

• 100 MHz

Phase Measurement Frequency :

• 455 kHz

Round-Trip Optical Path Length :

• 0–1.0 m

Retroreflector Travel Range :

• 0–0.5 m

Speed of Light Measurement Accuracy :

• 5% or Better

Main Unit :

• Quantity: 1

BNC Cables :

• Quantity: 2

Instruction Manual :

• Quantity: 1

Optional Accessory :

• Transparent Liquid Tube with Support Carriers

• Compact and Portable Design
• High-Accuracy Phase Measurement Method
• Speed of Light Determination
• Refractive Index Measurement Capability
• Optional Media Tube for Liquid and Solid Samples
• Detailed Instruction Manual