Interference maximum
====================

If the difference in the optical path of two waves is equal to an integer number of wavelengths
(i.e. an even number of half-wavelengths) then an interference maximum is formed at the point
of superposition of these waves.

**Conditions:**

#. The waves must be coherent.

**Links:**

#. `Vogueindustry <https://vogueindustry.com/17289645-interference-patterns-maximum-and-minimum-conditions#menu-9>`__.
#. `Livelaptopspec <https://www.livelaptopspec.com/what-is-maximum-constructive-interference/>`__.

.. py:currentmodule:: symplyphysics.laws.optics.interference_maximum

.. py:data:: travel_difference

    Optical travel difference between two coherent waves. See :attr:`~symplyphysics.symbols.optics.optical_distance`.

Symbol:
    :code:`Lambda`

Latex:
    :math:`\Lambda`

Dimension:
    :code:`length`


.. py:data:: integer_factor

    A :attr:`~symplyphysics.symbols.basic.whole_number` of interference maxima.

Symbol:
    :code:`N`

Latex:
    :math:`N`

Dimension:
    :code:`dimensionless`


.. py:data:: wavelength

    :attr:`~symplyphysics.symbols.classical_mechanics.wavelength` of each of the both waves.

Symbol:
    :code:`lambda`

Latex:
    :math:`\lambda`

Dimension:
    :code:`length`


.. py:data:: law

    :code:`Lambda = N * lambda`


    Latex:
        .. math::
            \Lambda = N \lambda