experiments >> diffraction of light at a slit and an edge
Heisenberg's Uncertainty Principle
photocell
Heisenberg uncertainty principle, or indeterminacy principle, statement, articulated (1927) by the German physicist Werner Heisenberg, that the position and the velocity of an object cannot both be measured exactly, at the same time, even in theory. The very concepts of exact position and exact velocity together, in fact, have no meaning in nature.
Related terms with this experimental setup:
› Diffraction
Huygens assumed that every point on a wave front may be regarded as a source of spherical wavelets the envelope of which is the position of the wave front at a later time. Huygens was thus able to account for rectilinear propagation and for the laws of reflection and refraction. Fresnel added the hypothesis that the wavelets can interfere, and this led to a theory of diffraction.
› Diffraction uncertainty
Any attempt to measure precisely the velocity of a subatomic particle, such as an electron, will knock it about in an unpredictable way, so that a simultaneous measurement of its position has no validity.
› Kirchhoff’s diffraction formula
› Measurement accuracy
› Uncertainty of location
› Uncertainty of momentum
› Wave-particle dualism
› De Broglie equation
Louis-Victor-Pierre-Raymond, 7e duc de Broglie French physicist best known for his research on quantum theory and for his discovery of the wave nature of electrons. He was awarded the 1929 Nobel Prize for Physics.
Experiments may be run on the given topics:
› To measure the intensity distribution of the Fraunhofer diffraction pattern of a single slit (e. g. 0.1 mm). The heights of the maxima and the positions of the maxima and minima are calculated according to Kirchhoff’s diffraction formula and compared with the measured values.
› To calculate the uncertainty of momentum from the diffraction patterns of single slits of differing widths and to confirm Heisenberg’s uncertainty principle.
Incase any query needs to be answered, please drop us an email.
experiments >> diffraction of light at a slit and an edge