Physics, 21.07.2021 14:00 vlactawhalm29
A converging lens of 20cm focal length is arranged coaxially with a diverging lens of focal length 8 cm. They are 8 cm apart. A point object lies on the same side of the converging lens and very far away on the axis. Find the position and nature of the final image of distant object.â
Answers: 1
Physics, 22.06.2019 07:30
Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a springâmass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (âdark absorption linesâ)? explain briefly.
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Physics, 22.06.2019 14:30
Slab pullâ is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false
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Physics, 22.06.2019 19:30
How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,â=2n=4,â=2 electronselectrons =6,â=â=â1n=6,â=2,mâ=â1
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A converging lens of 20cm focal length is arranged coaxially with a diverging lens of focal length 8...
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