Peak wavelength via temperature
===============================

The wavelength of a blackbody's radiation peak is inversely proportional to its
temperature. This law is known as the *Wien's displacement law*.

**Links:**

#. `Wikipedia <https://en.wikipedia.org/wiki/Group_velocity#Definition_and_interpretation>`__.

.. py:currentmodule:: symplyphysics.laws.waves.peak_wavelength_via_temperature

.. py:data:: peak_wavelength

    :attr:`~symplyphysics.symbols.classical_mechanics.wavelength` at which the peak of the spectral radiance of a blackbody occurs.

Symbol:
    :code:`lambda_peak`

Latex:
    :math:`\lambda_\text{peak}`

Dimension:
    :code:`length`


.. py:data:: temperature

    :attr:`~symplyphysics.symbols.thermodynamics.temperature` of the blackbody.

Symbol:
    :code:`T`

Latex:
    :math:`T`

Dimension:
    :code:`temperature`


.. py:data:: law

    :code:`lambda_peak = b / T`


    Latex:
        .. math::
            \lambda_\text{peak} = \frac{b}{T}