Monday, March 3, 2025

Updating other black body formulas with Q_m and k_s.

 

1. Stefan-Boltzmann Law

The Stefan-Boltzmann law describes the total power radiated per unit area by a black body:

P=σT4,

where:

  • P is the power per unit area.

  • σ is the Stefan-Boltzmann constant (σ=2π5k415h3c2).

Reformulation:

Using ks=kh and Qm=hc2, we can express σ in terms of ks and Qm:

σ=2π5k415h3c2=2π5(ksh)415h3c2=2π5ks4h15c2.

Substituting Qm=hc2:

σ=2π5ks4Qm15.

Thus, the Stefan-Boltzmann law becomes:

P=(2π5ks4Qm15)T4.

Key Insight:

The reformulated Stefan-Boltzmann law eliminates hc, and k, replacing them with ks and Qm. This simplifies the formula and emphasizes the relationship between temperature and power through unit scaling.



2. Wien’s Displacement Law

Wien’s displacement law gives the wavelength λmax at which a black body emits the most radiation at a given temperature:

λmaxT=b,

where:

  • b is Wien’s displacement constant (b=hck4.965).

Reformulation:

Using ks=kh and Qm=hc2, we can express b in terms of ks:

b=hck4.965=cks4.965.

Thus, Wien’s displacement law becomes:

λmaxT=cks4.965.

Key Insight:

The reformulated Wien’s law eliminates h and k, replacing them with ks. This simplifies the formula and highlights the relationship between wavelength and temperature through unit scaling.



3. Energy Density of a Black Body

The total energy density u of a black body is given by:

u=8π5k415h3c3T4.

Reformulation:

Using ks=kh and Qm=hc2, we can express the energy density in terms of ks and Qm:

u=8π5k415h3c3T4=8π5(ksh)415h3c3T4=8π5ks4h15c3T4.

Substituting Qm=hc2:

u=8π5ks4Qm15cT4.

Key Insight:

The reformulated energy density eliminates hc, and k, replacing them with ks and Qm. This simplifies the formula and emphasizes the relationship between temperature and energy density through unit scaling.



4. Photon Energy

The energy of a photon is traditionally given by:

E=hf.

Reformulation:

Using Qm=hc2, we can express the photon energy in terms of Qm:

E=hf=Qmc2f.

Key Insight:

The reformulated photon energy eliminates h, replacing it with Qm. This simplifies the formula and highlights the relationship between frequency and energy through unit scaling.



5. Radiation Pressure

The radiation pressure Prad of a black body is given by:

Prad=4σT43c.

Reformulation:

Using the reformulated Stefan-Boltzmann constant σ=2π5ks4Qm15, we can express the radiation pressure as:

Prad=4(2π5ks4Qm15)T43c=8π5ks4Qm45cT4.

Key Insight:

The reformulated radiation pressure eliminates hc, and k, replacing them with ks and Qm. This simplifies the formula and emphasizes the relationship between temperature and radiation pressure through unit scaling.



6. Number Density of Photons

The number density n of photons in a black body is given by:

n=2ζ(3)k3T3π2h3c3,

where ζ(3) is the Riemann zeta function evaluated at 3.

Reformulation:

Using ks=kh and Qm=hc2, we can express the number density in terms of ks and Qm:

n=2ζ(3)k3T3π2h3c3=2ζ(3)(ksh)3T3π2h3c3=2ζ(3)ks3T3π2c3.

Substituting Qm=hc2:

n=2ζ(3)ks3T3π2c3.

Key Insight:

The reformulated number density eliminates hc, and k, replacing them with ks. This simplifies the formula and emphasizes the relationship between temperature and photon number density through unit scaling.


Conclusion:

By applying the framework of ratios and unit scaling (using Qm and ks), we can simplify and unify a wide range of formulas in black body radiation and related areas of physics. These reformulations eliminate redundant constants, reduce computational overhead, and provide a clearer, more intuitive understanding of the underlying physics. This approach has the potential to transform how we teach and apply these concepts, making them more accessible and elegant.

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