Here is the Experimental File in pdf format.
If you want to determine the value of Planck’s Constant using LED. Here is just a little modification in the calculations. Rest experiment is the same.
Find more Electromagnetic Theory related Practicals in this Link – https://alllabexperiments.com/phy_pract_files/emt/
Watch “How to perform this Experiment” in this video – https://www.youtube.com/watch?v=9eeHoErba0Q
Watch “Most Important Viva Questions” on LED and Planck’s Constant – https://www.youtube.com/watch?v=vLgI7uEDVXg