Description
The PLANCK’S CONSTANT APPARATUS is a high-accuracy physics laboratory instrument designed to experimentally determine Planck’s constant (h) using the photoelectric effect or LED threshold voltage method (model dependent). This apparatus provides a clear demonstration of quantum theory fundamentals by relating energy and frequency, making it an essential experiment for modern physics laboratories.
Ideal for undergraduate and postgraduate physics labs, engineering colleges, and academic institutions.
✅ Key Features
⚛ Quantum Physics Demonstration
Enables accurate determination of Planck’s constant
Demonstrates energy quantization and photon behavior
Confirms fundamental principles of modern quantum theory
💡 Multiple Light Source Options (Model Dependent)
High-stability LEDs or photoelectric cell
Known wavelengths/frequencies for precise calculations
Ensures repeatable and reliable experimental results
🎛 Precision Regulated Power Supply
Smoothly variable voltage control
Built-in digital/analog meters for voltage and current
Stable output ensures accuracy and repeatability
📊 Clear Observation & Data Analysis
Well-defined linear relationship between frequency and energy
Easy plotting of graphs for calculation of Planck’s constant
Ideal for laboratory record work and evaluations
🧱 Robust & Student-Friendly Construction
Mounted on durable metal/insulated panel
Clearly labeled controls and terminals
Designed for repeated academic use
🛡 Safe & Reliable Operation
Low-voltage, student-safe design
Proper insulation and grounding
Overload protection for extended equipment life
📊 Typical Applications
Determination of Planck’s constant
Study of photoelectric effect
Verification of quantum theory principles
Modern physics practical experiments
B.Sc., M.Sc., and engineering physics labs
Academic demonstrations of photon behavior
💡 Why Choose This Model?
Accurate and reproducible determination of Planck’s constant
Clear demonstration of quantum mechanics fundamentals
Easy-to-use setup for students and instructors
Durable construction for long-term laboratory use
Essential apparatus for modern physics education










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