20170327_AH_Interference
... Interference comes from coherent sources having an optical path difference. Two waves are said to be coherent if they have a constant phase relationship. For two waves travelling in air to have a constant phase relationship, they must have the same frequency and wavelength. At any given point, the p ...
... Interference comes from coherent sources having an optical path difference. Two waves are said to be coherent if they have a constant phase relationship. For two waves travelling in air to have a constant phase relationship, they must have the same frequency and wavelength. At any given point, the p ...
Fourier Transform Infrared (FTIR) Spectroscopy
... • Coherence required for interference: only occurs if two waves have the same frequency and polarization Ordinary light is not coherent because it comes from independent atoms which emit on time scales of about 10-8 seconds. Laser light is an example of a coherent light source – a common stimulus t ...
... • Coherence required for interference: only occurs if two waves have the same frequency and polarization Ordinary light is not coherent because it comes from independent atoms which emit on time scales of about 10-8 seconds. Laser light is an example of a coherent light source – a common stimulus t ...
Diffraction
... l Gravitational waves are ripples in the fabric of space-time. When they pass through LIGO's L-shaped detector they will decrease the distance between the test masses in one arm of the L, while increasing it in the other. These changes are minute: just 10-16 centimeters, or one-hundredmillionth th ...
... l Gravitational waves are ripples in the fabric of space-time. When they pass through LIGO's L-shaped detector they will decrease the distance between the test masses in one arm of the L, while increasing it in the other. These changes are minute: just 10-16 centimeters, or one-hundredmillionth th ...
04-Waves shorter
... Electrons being ejected from the surface of a metal by incident light of a suitable frequency. Uncle Albert used Plank’s theory that as energy came in packets all energy 1 photon to 1 electron ...
... Electrons being ejected from the surface of a metal by incident light of a suitable frequency. Uncle Albert used Plank’s theory that as energy came in packets all energy 1 photon to 1 electron ...
Episode 319 - Teaching Advanced Physics
... some of the activities described here, so it is a good idea to familiarize yourself with any available lasers, and to ensure that you know how to use them safely. Laser light is particularly suitable for optical work. He-Ne gas lasers used in schools and colleges have a wavelength of 633 nm. Laser l ...
... some of the activities described here, so it is a good idea to familiarize yourself with any available lasers, and to ensure that you know how to use them safely. Laser light is particularly suitable for optical work. He-Ne gas lasers used in schools and colleges have a wavelength of 633 nm. Laser l ...
07-HW7 - Rose
... Visualize: Please refer to Figure P21.73. Solve: (a) We have three identical loudspeakers as sources. r between speakers 1 and 2 is 1.0 m and 2.0 m. Thus r 21 , which gives perfect destructive interference for in-phase sources. That is, the interference of the waves from loudspeakers 1 and ...
... Visualize: Please refer to Figure P21.73. Solve: (a) We have three identical loudspeakers as sources. r between speakers 1 and 2 is 1.0 m and 2.0 m. Thus r 21 , which gives perfect destructive interference for in-phase sources. That is, the interference of the waves from loudspeakers 1 and ...
Topic 16: Geometric Optics
... Among Young’s varied interests was Egyptology. This led him, on the summer of 1814, to take up the study of the Rosetta Stone. Young’s breakthrough in deciphering hieroglyphics was simple. He assumed a group of encircled symbols or cartouche represented the Pharaoh Ptolemy and would have a similar p ...
... Among Young’s varied interests was Egyptology. This led him, on the summer of 1814, to take up the study of the Rosetta Stone. Young’s breakthrough in deciphering hieroglyphics was simple. He assumed a group of encircled symbols or cartouche represented the Pharaoh Ptolemy and would have a similar p ...
