Plot A Graph Between Frequency F Vs Maximum Kinetic Energy Ekmax Use Graph Sheet Samm Conclusion 5 Marks Model 1 (72.46 KiB) Viewed 46 times
Plot A Graph Between Frequency F Vs Maximum Kinetic Energy Ekmax Use Graph Sheet Samm Conclusion 5 Marks Model 2 (28.25 KiB) Viewed 46 times
Plot a graph between frequency (f) vs maximum kinetic energy (Ekmax) - Use Graph Sheet SAMM Conclusion: [5 marks] Model Graph 1) 1. Planck's Constant (h): Energy of electrons vs frequency of light (for photoelectric cell) x-intercept is threshold frequency -y-intercept is work function gradient-the Planck constant 2. Threshold frequency (fe): 3. Work function of the metal (Ⓡ): ફિરજ ડાં કરી From the graph, calculate the following:
II) Calculate the Percentage error for the following: Theoretical value of work function: a) Sodium b) Zinc c) Calcium d) Copper e) Platinum Parameter = 2.28 eV. = 4.3 eV = 2.9 eV = 4.7 eV = 6.35 eV Planck's Constant (h) Work function of Theoretical Value Experimental Value from the graph 6.63 x 10-34 J.s % of Error
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