Wave Nature of Matter

Physics

definition

De-broglie wavelength

De Broglie's wavelength is the wavelength associated with a massive particle,hypothesized by De Broglie that explains Bohr's quantised orbits by bringing in the wave-particle duality.  It is written as
(de broglie wavelength)

definition

Heisenberg uncertainty principle

The position and momentum of a particle cannot be simultaneously measured with arbitrarily high precision.


formula

Uncertainty in position or momentum


where  is the uncertainty in position,
is the uncertainty in momentum and
is the reduced Planck's constant

example

Mass of a particle using de-Broglie wavelength

The de-Broglie wavelength associated with a particle moving with a velocity of  m/s is .Then the mass of the particle is 


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