LED line Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-W-11132
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Product Description
This visually appealing device clearly illustrates the relationship between colour and wavelength.
Seven coloured LEDs plus white, span the visible spectrum.
Mounted in a robust vertical column, the LEDs can easily be viewed by a whole class.
The LED.line has a rotary switch to allow users to select and measure the voltage across each individual LED.
Knowing these voltages and the wavelength for each LED, Planck's Constant can be determined.
Students have a great opportunity to consider and minimise the sources of error in their experimental work.
Depending on the diffraction grating used, first, second and third order fringes can be observed and used for calculations.
Explore the action of colour filters
Demonstrate diffraction at different wavelengths
Calculate the wavelength for each LED colour
Measure the voltage across each LED and determine Planck's Constant graphically
Compliant to EN61010-2010 with certificates available on request
Teacher's notes are included on CD.
5V Power supply included.
To carry out all of the experiments described in the
Teacher Notes, you will also need the following equipment:
Easy Read Meter
20V D.C. Easy Read Attachment
Diffraction Gratings
Colour Filters
Connecting Leads
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