h is Planck's constant. Provided on your exam data sheet (6.626x10-34 J.s) This equation is said to define the relationship between energy and frequency in a black body. A black body is an object that is both a perfect absorber and emmitter – absorbing all incident radiation and emitting all possible radiations.
Moreover, what does the H in E HV stand for?
PhysicsMatters.org: Quantum: E=hv. This equation says that the energy of a particle of light (E), called a photon, is proportional to its frequency ( ), by a constant factor (h). This means that photons with low frequencies, like radio waves, have lower energies than photons with high frequencies, like x-rays.
What is H equal to in e HV?
Planck's constant is always going to be 6.626x10^-34 J s. And it's h. Upper case H is enthalpy in chemistry, not sure what it is in physics. E = hv tells you that the energy of a photon/quantum is equal to Planck's constant, h, times nu (which is the frequency of a wave).
What is E in Planck's equation?
The equation that defines Planck's constant is called the Planck-Einstein relation, and it looks like this: E = hf. Here, E is the energy of each packet (or 'quanta') of light, measured in Joules; f is the frequency of light, measured in hertz; and h is of course Planck's constant.