3 Questions
Which equation correctly expresses the relationship between a photon's energy, frequency, and the Planck constant?
$E = f \cdot h$
Which constant is used, together with other constants, to define the kilogram, the SI unit of mass?
Planck constant
What is the value of the Planck constant expressed in SI units?
$6.62607015×10^{-34} , \text{J} \cdot \text{Hz}^{-1}$
Study Notes
Photon Energy and Frequency
- The relationship between a photon's energy, frequency, and the Planck constant is expressed by a specific equation.
- This equation demonstrates the connection between a photon's energy and its frequency, with the Planck constant being a crucial component.
Defining the Kilogram
- The Planck constant is used, along with other constants, to define the kilogram, which is the SI unit of mass.
- This highlights the significance of the Planck constant in the measurement of mass.
Planck Constant in SI Units
- The value of the Planck constant expressed in SI units is a fundamental constant in physics.
- This value is a crucial component in various calculations and equations, particularly in the context of photon energy and frequency.
Test your knowledge of the Planck constant and its significance in quantum mechanics with this informative quiz. Explore the relationship between energy, frequency, and mass as you delve into the fundamental concepts of this important physical constant.
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