Examine whether the statement,
Q: Some insects, like bees, can see light of shorter wavelengths than humans can see. What kind of…
A: The arrangement of electromagnetic radiations in the order of decreasing wavelengths or increasing…
Q: In your own words, explain what a Stokes shift is and why it occurs in many fluorescent dyes.
A: STOKES SHIFT When a light of wavelength incident on the part, the molecules absorb the energy and…
Q: Why can atoms be seen with an electron beam?
A: The atoms can be seen with an electron beam because their size is larger than the wavelength of an…
Q: Which of the following is/are characteristics of lasers? ⦁ Emits the same wavelength of light ⦁…
A: Laser is defined as a device that amplifies the light and emit at a particular wavelength. It is…
Q: WHY DOES LIGHT FROM A RED LASER PASSES MORE EASILY THOUGH RED CELLOPHANE THAN GREEN CELLOPHANE
A: The cellophane are the devices used to absorb the light of the other colors. These are similar to…
Q: In what specific way does light from distant stars and galaxies tell astronomers that atoms…
A: Every element emit a specific light which contain a specific wavelength. The different element have…
Q: How does Rutherford’s model of the atom account for the back-scattering of alpha particles directed…
A: Given: Rutherford's model
Q: Laser ablation is an effective tool for probing micro areas of solid samples. How does it work?
A: The mechanism of laser ablation depends on physical properties of metals and environment medium.…
Q: Why is it impossible for a gas composed of atoms that all have their electrons in the ground state…
A: Electrons can absorb energy and move into a higher state. Once the electron reaches a higher state…
Q: Determine the ratios of the chemically nonequivalent protons in a compound if the steps of the…
A: Given: The ratios of the chemically non equivalent protons in a compound if the steps of the…
Q: What is the relation betwen iron and copper?
A: The chemical element iron has the symbol Fe and the atomic number 26. It is a metal that belongs to…
Q: Compare Electron Ionization and Matrix assisted laser desorption Ionization (MALDI) ? Please answer…
A: Electrospray ionization (ESI-MS) and matrix assisted laser desorption-ionization (MALDI-MS) were…
Q: In spectrophotometric analysis, why is the wavelength of the emitted light longer than that used to…
A: Photoluminescence is the process by which a light or photon stimulate emission of photon from an…
Q: Detail the theory of UV spectroscopy and its biological applications.
A: Spectroscopy is a broad field of research that examines and interprets the electromagnetic spectra…
Q: what holds an electron revolving around the nucleus? Why don't they just go zooming around…
A: The electrons in an atom are held in orbit around the nucleus by the electromagnetic force, which is…
Q: On some occasions, the selected molecule moved in and out until a photon of light was emitted. This…
A: In order to answer this question we might first want to think about what is electromagnetic…
Q: If we continue heating a piece of initially room-temperature metal in a dark room, it will begin to…
A: The metal glows at any temperatures, but it can be clearly visible to human eyes when it reaches in…
Q: Argon and potassium are neighbors in the periodic table but have very different sizes—a potassium…
A: The ionization energy is the minimum energy required to remove the electrons from the outermost…
Q: The wavelength of a 6 MeV photon beam is
A: Given data The energy of the photon beam is given as E = 6 MeV. The mathematical expression to…
Q: What accounts for the difference in penetration ability with regard to the type of emission and the…
A: Different Types of radioactive emission: Alpha rays Beta rays Gamma rays
Q: (ii) Explain the operation of a tungsten source used in absorbance spectroscopy.
A: (ii) The tungsten lamp or tungsten halogen lamp is a blackbody emitter that produces useful…
Q: Do atoms ever actually touch each other?
A: The atom consists of three particles: protons electrons neutrons In the nucleus of atom there are…
Q: What is the cutoff wavelength Amin in pico meters (10-12) of the X-Rays emitted when 32.1 kilo eV…
A: Step 1: Data given: E = 32.1 keV. Step 2: Converting eV into joule:1 ev = 1.6×10−19 JSo, 32.1 keV =…
Q: How does the lifetime of a typical LED compare with that of an incandescent bulb?
A: In an incandescent bulb, it has a burning filament that produces heat in addition to light which…
Q: how to calculate the wavelength, in meters, of electromagnetic radiation needed to remove an…
A: Electron can be removed from valence shell of an atom on application of electromagnetic radiation.…
Q: Use dimensional analysis and show that the expression e=mc^2 has a unit of energy.
A: We are given with an equation , E = mc2 We have to show E has unit of energy
Q: The 10-fold X-ray reduction values for (a) water, (b) concreate, (c) iron and (d) lead are equal 100…
A:
Q: When photons of sunlight. O Hole Photon Pairs
A:
Q: What were the difficulties in producing blue LEDs and the benefits of this achievement?
A: LEDs are one of many useful spinoffs from the basic science of quantum mechanics. In the standard…
Examine whether the statement, "A fluorescent molecule, having absorbed a single photon of light at one wavelength, always emits it at a longer wavelength", is true or false.
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