PC-10  Planck's Constant determination using LED is a useful setup which illustrates the basic concept of the Quantum Mechanics. The setup familiarizes the concept of photon energy and explains how it is related to its frequency. Setup is mainly designed to evaluate Planck's Constant. For this purpose five LEDs of different colors are included with the setup. This setup facilitates to determine the Planck's Constant by measuring the voltage drop across LEDs.

• Weight : 2 Kg. Approximately
• Dimension : 250mm × 325mm × 70mm

SPECIFICATION:

DC Power Supply     : 0-5 V

LED Type                  : Super bright

Size                           : 5 mm

Colours                     : Blue, Green, Orange, Red and Yellow

 

DC Voltmeter

Type                           : LCD

Display                       : 3½ digit

Range                        : 200mV - 200V

 

DC Ammeter

Type                           : LCD

Display                       : 3½ digit

Range                        : 2μA- 200mA

 

Mains Supply           : 230V ±10%, 50Hz

Fuse                         : 0.5A

FEATURES:

1. Self contained setup requires no other accessory
2. Super bright LEDs
3. LCD for current and voltage measurement
4. Variable DC Supply (0-5 Volt)
5. Online product tutorial
6. 2 Year Warranty 

SCOPE OF LEARNING: 

1. Determination of Planck's Constant using Light Emitting Diode (LED)
2. Draw the I-V characteristic for Light Emitting Diode (LED) and hence
3. Determine the Threshold Voltage
4. Determination of Planck's Constant by plotting curve between
5. Threshold Voltage and Wavelength of LEDs

 

Note: There may be any change in specification due to continuous R & D without notice.

 

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