Explain electron diffraction.

Q: Define the following terms: Diffraction: Dispersion: Refraction:

A: We will define the given terms

Q: Yellow light can have a wavelength of 595 nm. The energy of a photon of this light is:

A: We have to calculate the energy of photon.

Q: Describe briefly the photoelectric effect

A: When the material is bombarded with electromagnetic radiations like light, there is emission of…

Q: A photon with a wavelength of 850 nm is in what part of the electromagnetic spectrum?

A: The range of frequencies, wavelength and photon energies of electromagnetic radiations is determined…

Q: Consider a blue light with a wavelength of 448.1 nm. What is the energy of one photon?

A: 2.27 ev

Q: What is the correct order for energies of portions of the electromagnetic spectrum?

A:

Q: Laser light has a wavelength of 580 nm in a vacuum. C

A: Solution:- Data provided - wavelength of laser light in vacuum = 580 nm Refractive index = 1.2…

Q: Explain why you don't notice that objects around you have a wavelength.

A: We do not notice that objects around you have a wavelength because mass is inversely propotional to…

Q: What is electron diffraction? Explain with an example?

A: Electron diffraction is an analytical technique used to determine the type of the compound present…

Q: A photon has a wavelength of 705 nm. Calculate the energy of the photon in joules.

A: The energy of the photon in joules has to be given, Convert nanometers into meters.

Q: How did the photoelectric effect lead Einstein to propose that light is quantized?

A:

Q: Why do atoms, when excited withenergy, emit light only at particular wavelengths?

A: When atoms gain energy , there is always excitation of energy. They get excited and move to higher…

Q: can you give information of this questions ;  the sources of radiation and their wavelength ranges…

A: The entire range of wavelengths of electromagnetic radiation is called the electromagnetic spectrum.…

Q: A laser dazzles the audience in a rock concert by emitting green light with a wavelength of 527 nm.…

A: Given, wavelength = 527nm.Frequency can be calculated by the following equation:

Q: Ultraviolet light haslonger wavelengths than visible light. is it true/false ?

A: Electromagnetic spectrum- Electromagnetic spectrum gives the range of frequency of of…

Q: A photon has a wavelength of 286 nm.  Calculate its frequency and energy

A: Electrons can behave as a particle as well as wave. The dual nature of electron was explained by De…

Q: Explain what is meant by the photoelectric effect.

A: The question is based on the concept of atomic structure. we have to explain one of the most…

Q: What is light? How fast does it travel in a vacuum?

A: Electromagnetic radiation is the wave that travels through space.

Q: what conclusion Did Einstein draw about light after observing the photoelectric effect

A: In 1905, Albert Einstein gave a fresh explanation on photoelectric effect. With regard of KE of…

Q: Why do scientists study images made with parts of the electromagnetic spectrum other than visible…

A: We have various division of electromagnetic spectrum .

Q: Consider three different light waves in the visible spectrum: A, B, and C. The energy of Wave A is…

A: The energy of the radiation is quantized. The smallest unit of energy of the radiation is known as…

Q: What is the relationship between photon energy and photon wavelength?

A:

Q: At a quantum level, the atoms of both glass and ground glass should be identical. Then, why do the…

A: Answer: Opaque nature of ground glass is due to the diffused reflectance of light. Ground glass is…

Q: When light strikes a green opaque object, the green wavelength of light is v while all other…

A: Answer

Q: How does electron diffraction demonstrate the complementarity of the wave nature and particle nature…

A: The properties which eliminate each other are referred as complementary properties

Q: Determine the energy of a photon with a wavelength of 364 nm.

A: Given the wavelength of photon, λ = 364 nm We have to find the energy(E) of the photon.

Q: what are the factors affecting scattering of light?

A: The scattering of light is a physical process in which some form of light are forces to deviate from…

Q: During fireworks, visible light is emitted when:

A: When the fireworks are lit, the atoms/molecules in the gunpowder are heated up.  Due to the heating…

Q: How do the wavelengths yellow compare to the wavelengths of orange?

A: 1. According to de-broglie principal, we can say that electron can behave as a particle and a wave,…

Q: Sketch the 3d orbitals. How do the 4d orbitals differ from the 3d orbitals?

A: Given: Difference between 3d orbitals and 4d orbitals.

Q: What happens to white light when it passes through a prism

A: The optical element which has transparent flat polished surfaces is called prism, in which the…

Q: Some copper compounds emit green light when they are heated in a flame. How would you determine…

A: When a light passes through a prism, the emitted light of different wave lengths will be separated…

Q: . Define the following terms:  Diffraction: Dispersion: Refraction

A: Each term is defined along with that suitable example is given of where it occurs is given below

Q: List the quantum numbers (n,ℓ,mℓ,ms) for all the electrons in a carbon atom.

A: Carbon (atomic number = 6) occupies second row in periodic table. In ground state, the carbon atom…

Q: Define the following terms: Refraction: Reflection:

A: These are the topic of  light which you study in Physics   When waves bounce off a barrier, they…

Q: Define the frequency of electromagnetic radiation? How is frequency related to wavelength?

A: Electromagnetic radiation is a form of energy that is all around as and takes many forms. It…

Q: Describe what is the photoelectric effect?

A: We know that light radiations move in the forms of photons(discrete packets of light) and when these…

Q: When we see light from a neon sign, we are observing radiation from excited neon atoms. If this…

A: Given, wavelength = 540 nm

Q: A laser dazzles the audience in a rock concert by emitting green light with a wavelength of 515 nm.…

A: Given: c= 3*10^8 lambda = 515 nm = 515*10^-9

Q: Explain the wave behavior known as diffraction. Draw the diffraction pattern that occurs when light…

A:

Q: Explain how the photoelectric effect helps us understand the nature of light

A: The photoelectric effect is the phenomenon of ejection of electrons from the surface of certain…

Q: A mercury arc lamp has a strong emission line at 546 nm. Calculate the frequency and photon energy.

A:

Q: The infrared part of the solar light on the surface of earth as wavelengths between look at the…

A: Given wavelengths,

Q: he hydrogen atom produce light at all wavelengths

A: Concept: The branch of chemistry that deals with the structure, properties and the reaction of the…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.