In an experiment to determine the Planck constant h, LEDs of different colours were used. The p.d.
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In an experiment to determine the Planck constant h, LEDs of different colours were used. The p.d. required to make each conduct was determined, and the wavelength of their light was taken from the manufacturer’s catalogue. The results are shown in Table 28.3. For each LED, calculate the experimental value for h and, hence, determine an average value for the Planck constant.
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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