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[DOCX File]16. Planck's Constant
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Planck's Constant. Student Designed. Driving Question | Objective. What is the value of Planck's constant and how can it be determined experimentally? Given the quantization of light energy and the relationship between photon energy and frequency, perform an experiment using the light emitted from monochromatic LEDs to determine the value of ...
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[DOC File]A Determination of Planck’s
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Constant: The Diode Method It was the purpose of this lab to determine Planck’s Constant, h, by utilizing very simple equipment. Diodes which emit specific wavelengths were employed in a manner that allows one to determine h from voltage and current measurements; basically due to what could be considered the inverse of the photoelectric effect.
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[DOC File]DETERMINATION OF PLANCK’S CONSTANT USING LEDS
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DETERMINATION OF PLANCK’S CONSTANT USING LEDS (Rev 3/22/10) SETUP AND DATA TAKING. Connect the power supply and meters to the LED as shown in the diagram. Use a power supply with coarse and fine knobs. Use the Protek meter to measure current. Set power supply to 0 volts before turning on. Start with the blue LED (according to wavelength) on ...
planck's constant formula

[DOC File]Austin Community College District
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Planck’s Constant Apparatus, Cenco 32516. Light Source, Mercury Sci. Kit Bor. Lab. 65895. Jack, Table (Blue) Multi-meter, Digital (DMM) (2) Probes, for Multi-Meter, Digital (2) Figure 1—Set Up and Equipment. Warning. The Mercury Light Source: Do no look directly at the bulb itself without the translucent or colored filters in place ...
planck's constant equation

[DOC File]Measuring Planck's Constant:
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MP – Mr. Nicastro Lab Activity: Measuring Planck's Constant (adapted from The Perimeter Institute of Theoretical Physics) Aim: To demonstrate the quantization of light and to measure Planck's constant (h). Background: The energy lost by a single electron that passes through a light-emitting diode (LED) is converted into the energy of one ...
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[DOC File]Lab: Photoelectric Effect
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Max Planck had determined that the energy of the photon was equal to its frequency times a constant. Planck had no idea what the constant was, only that he needed it to make his calculations work. Therefore . Ephoton = hf. Where f is the frequency in hertz. This means the important formula for the photoelectric effect is: KE = hf – Eescape
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[DOC File]THE PHOTOELECTRIC EFFECT
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OBJECTIVE: To determine Planck’s constant by observing the photoelectric effect. REFERENCE: Krane, Section 3.2. THEORY: When light (or other electromagnetic radiation) is incident on a metal surface, electrons can be released from the metal. This is the photoelectric effect. According to classical theory, the electrons are shaken loose from ...
planck's constant in different units

[DOCX File]16. Planck's Constant
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Planck's Constant. Guided Inquiry. Driving Question | Objective. What is the value of Planck's constant and how can it be determined experimentally? Given the quantization of light energy and the relationship between photon energy and frequency, perform an experiment using the light emitted from monochromatic LEDs to determine the value of ...
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[DOC File]IB PHYSICS I
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Comment on the value you arrived at for Planck’s constant, as compared to the standard value with reference to uncertainty, errors or limitations in the data or calculations. (2 marks) Explain why it is reasonable to compare the slope from the minimum voltage V0 against the frequency graph to Planck’s constant in eVs, even though the units ...
planck's constant units

[DOC File]Determining Planck’s Constant from the Photoelectric Effect
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Planck’s constant, the ratio between the energy of the emitted electrons and the frequency of the incident photons, is what will be measured in this experiment. These extraordinary results were recognized by Nobel Prizes in Physics for Planck in 1918, Einstein in 1921, and Millikan in 1923.
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Planck s constant lab