What is a cathode ray?

Q: A hydrogen atom is in its ground state when its electron is a. in its highest energy level b. inside…

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Q: What is the relationship between the energy differences of orbits in an atom and the light emitted…

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Q: Give an example of a physical entity that is quantized. State specifically what the entity is and…

A: Quantization of a physical quantity is the concept of varying the quantity only over a particular…

Q: Find the maximum energy in eV of an x-ray photon produced by electrons accelerated through a…

A: The maximum photon energy is given by,

Q: :Which one is the more commonly used in the medical fields Pulsed laser Contineous laser. Both O

A: Pulsed lasers are specially helpful in the study of transient phenomena that occur in time intervals…

Q: The percent of projectile electron energy that is converted to x-ray energy is about O (80) O (1) O…

A: The projectile electron interacts with the electrons in the orbit of the target atom. Due to this,…

Q: Light that has a frequency of about 5.20 1014 Hz (a wavelength of about 578 nm) appears yellow to…

A: Light that has a frequency of about 5.20 1014 Hz (a wavelength of about 578 nm) appears yellow to…

Q: contains the same number of protons, but a variable 2. number of neutrons. 3. The distance between…

A: Isotopes contains the same number of protons, but variable number of neutrons The distance between…

Q: Which laser beam carries more energy per photon—a red beam or a green beam?

A: Given:  a red and a green beam

Q: What is the function of a photodiode?

A: A photodiode is a PN-junction diode which utilizes the light rays to convert light energy into the…

Q: MCQ 22: The beam of electrons can be produced with the help of A. anode-ray tube B. cathode-ray tube…

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Q: How can you use the emission spectrum of an element to identify it?

A: From emission spectra it is possible to identify the element. When an element gives emission…

Q: What is the principal difference between X-ray and light?

A: Basically X ray are the same thing as visible light rays. Both are wavelike forms of electromagnetic…

Q: Why are the rays released by a cathode ray tube considered to be light?

A: Why are the rays released by a cathode ray tube considered to be light?

Q: The human eye is sensitive to blue light having a frequency of about 6.4 x 10 ^14 Hz (a wavelength…

A: given Light having the frequency f = 6.4*10^14 Hz             Energy of the light E = h f

Q: An electron sitting in the -4eV energy level of this atom is struck with a photon and as a result it…

A: Energy gained by the electron is given as the difference between the levels, that is E=-1.8-(-4)=2.2…

Q: 1. To say that light is quantized means that light is made up of, (elemental units) (waves) 2.…

A: Note : Since there are multiple subpart and as per guidelines we can provide solution to first three…

Q: The human eye is sensitive to orange light having a frequency of about 5.0 * 1014 Hz (a wavelength…

A: Given data  The frequency of the orange light is given as f = 5.0 x 1014 Hz. The wavelength of the…

Q: For which one of the following, Bohr model is not valid?

A: Bohr model is applicable for only single electron species.

Q: What did the physicist Roentgen discover about a cathode-ray beam striking a glass surface?

A: When cathode ray beam strikes a glass surface, it could not pass through solid material. It ionized…

Q: Do electron have the the most mass in the atom ?

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Q: found experimental relationship between X-ray line emitted by atom and atomic number of the atom.…

A: Given that:- Experimental relationship between X-ray line emitted by atom and atomic number of the…

Q: What is meant by saying charge is quantized?

A: The smallest charge that exist in nature is electron. The value of charge on an electron is…

Q: Does the cathode accelerate the electrons?

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Q: A hydrogen atom is 0.53 angstrom in radius. Use the uncertainty principle to estimate the minimum…

A: Uncertainity principle was the first big step towards quantum world. It was this principle which led…

Q: Why would you be concerned about observing a cluster of several balls in the Millikan electron…

A: Introduction: Millikan's oil drop experiment basically measured the charge of an electron. His…

Q: The lines in the emission spectrum of hydrogen result from .....

A: The emission spectrum of hydrogen has been divided into a number of spectral series, with…

Q: In a Millikan oil-drop experiment using a setup like that as shown, a 500-V potential difference is…

A: a. write the expression for force due to electric field. Write the expression for force due to…

Q: How far is the electron

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Q: caculate the energy [in ev]  of a photon with a wavelength of 450nm. One ev is equivlent to 1.6e-19…

A: Given data:  Wavelength (λ) = 450 nm 1 eV = 1.6 × 10-19 J Required: The energy of the photon in eV

Q: What is the meaning of stimulated emission?

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Q: What are some of the differences between protons and photons?

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Q: Using the Bohr model find the ionization energy of the ground He+ ion

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Q: Explain how a cathode ray tube works with the help of a diagram?

A: Definition-The CRT is a display Screen that produces Images in the form of video signals. it is a…

Q: What property of a cathode ray is indicated when a magnet is brought near the tube?

A: When the magnetic field is installed in the path of cathode rays they are deflected.

Q: The value of the alpha factor for photons is O 3 O 1 O 2

A: Given: Asked to find the value of alpha factor for photons.

Q: The red limit of the photoeffect for the sodium cathode corresponds to a wavelength of 540 nm. Will…

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Q: Why the emitted photons from a Hydrogen atom only have certain colours?

A: Electrons in hydrogen atom revolve in orbits which have fixed energy levels. For an electron to jump…

Q: The wavelike properties of electrons are useful in: A) Magnifying objects B) Lasers C) Weather…

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Q: A laser produces 22.0 mW of light. In 4.00 hr, the laser emits 7.08×10^20 photons.What is the…

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de Broglie Equation

The sketch of matter waves is drawn below: