[tex]\huge\color{pink}\boxed {\colorbox{black}{question}}[/tex]
Define planck's equation
Share
[tex]\huge\color{pink}\boxed {\colorbox{black}{question}}[/tex]
Define planck's equation
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Energy of a photon can be calculated from this equation. The planks constant h= 6.626 x 10^-34 J.
Verified answer
Answer:
Planck's equation, also known as Planck's radiation law or Planck's black body radiation law, is a fundamental equation in physics that describes the spectral energy density of electromagnetic radiation emitted by a black body at a given temperature.
The equation is given by:
[tex] B(\lambda, T) = \frac{{2hc^2}}{{\lambda^5}} \cdot \frac{1}{{e^{\left(\frac{{hc}}{{\lambda k_B T}}\right)} - 1}} [/tex]
Where:
- B[tex]\lambda[/tex], T) is the spectral radiance (energy per unit time, per unit area, per unit solid angle, and per unit wavelength interval) at a given wavelength [tex]\lambda [/tex] and temperature T .
- h is Planck's constant (approximately[tex]6.62607015 \times 10^{-34} , \text{J} \cdot \text{s} [/tex]
- c is the speed of light in a vacuum (approximately [tex]2.998 \times 10^8 \, \text{m/s} [/tex]
- [tex] k_B [/tex]is the Boltzmann constant (approximately [tex]1.380649 \times 10^{-23} \, \text{J/K} [/tex]
- e is the base of the natural logarithm.
Planck's equation is significant because it provided a theoretical explanation for the observed distribution of energy in black body radiation, which classical physics failed to explain. It played a crucial role in the development of quantum mechanics and the understanding of the quantization of energy.