Our bodies are penetrated by X rays but not by visible light. Is this because X raystravel faster than visible light?

Q: consider a 75 w bulb and 850 w microwave oven . if the wavelength of the radiation they emitted are…

A: Solution Significant quantum effects in chemistry vary from static structure (electronic and…

Q: For two gas particles with the same velocity, which would have a larger (longer) de Broglie…

A: de Broglie wavelength is an important concept in quantum mechanics. It is used to solve for the…

Q: Prove the following relation. ds со CP * (7) a + (7), dP = ТӘР и dv

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Q: How would you expect the diffraction pattern of photons and electrons to change if you increased the…

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Q: Three regions are defined in the figure. y C (0, 3) В (1,3) R2 R3 R1 y33 x А (1,0) Find the volume…

A: GIVEN:

Q: The dust in a molecular cloud emits at maximum intensity at a wavelength of 57 µm. What is the…

A: The relationship between wavelength of the spectra emitted and the temperature can be explained by…

Q: The atoms of the medium then continually absorb and re-emit the particles of light which increases…

A: Speed of light changes  from propagating one medium to other because on going one medium to other…

Q: Which of the following statement is correct for wave energy? O The difference in height of a wave…

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Q: Define the term critical point?

A: The term critical point has to be defined below.

Q: How would density of states (DOS) vs energy plots behave for quantum wells, quantum wires and…

A: Solution: Density of states-(DOS)- The density of states (DOS) is the number of distinct states that…

Q: TRUE OR FALSE A Reflection Nebula is an Absorption Nebula that reflects light from a nearby star.

A: Trus

Q: atch Column A with Column B. Using UV-Vis, the result of the absorption of coffee is shown in the…

A: Since you have posted question with multiple subparts as per guidelines we can answer only three per…

Q: I can see through an opaque object. O True O False

A: We know that, opaque material do not allow transmission of light.

Q: The deflection of light particles passing through a particular medium is called refractive index.…

A:

Q: light A. How is the wavelength of a photon related to its equency?

A: In this question, we will discuss about how wavelength is related to frequency for a photon.  You…

Q: A nitrogen molecule is confined in a cubic box of volume 1.00 m3. (i) Assuming that the molecule has…

A: We have value for volume =1.00 m3Translational energy =32kTE -Translational energyk  -Boltzmann…

Q: (1)Calculate the average distance a 100 keV photon will travel in graphite.   (2) Calculate the…

A: Note: As per our company guidelines, we are supposed to answer only 1st question at a time. Kindly…

Q: Which light source emits radiation in the infrared region? Select one: a. xenon arc lamp b.…

A: a) Xenon-arc lamp emits radiation in the near IR region. b) Deuterium arc lamp emits radiation in…

Q: QUESTION 9 What poperty of light is affected that explains the refraction of light through different…

A: Refraction of light in the presence of  different medium.

Q: 1. What factors are included in the Beer's law expression for determining how much light passes…

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Q: Two nitro (NO,) groups are chemically bonded to a patch of surface. They can't move to another…

A: The given data contains, Rotational kinetic energy (1) = 19 ε Rotational kinetic energy (2) =27 ε

Q: Light waves bend when they pass from one medium to a different medium because the speed of the wave…

A: Refraction is an effect that occurs when a light wave, incident at an angle away from the normal,…

Q: The most energetic among the UV, Visible, X-ray, and infrared (IR) radiations in the electromagnetic…

A: Solution:- True . In electromagnetic radiation , the frequency order is: Gamma ray > X- ray >…

Q: Q1/ The atomic radius of BCC Cesium is 0.265 nm, and the atomic mass is 132.91 g/mol, determine the…

A: Interpretation - To determine the number of vacancies for a BCC cesium crystal when the atomic…

Q: What is the total amount of energy absorbed by the surface? What fractionof that energy is emitted…

A: (a) There are four different sources that transfer energy into the atmosphere. The sources along…

Q: Jessica is olanning on painting her room, She happens to like light that has a wavelength of 96.3.m.…

A: Using the relation between wavelength and frequecy and speed of light we can find frequecy of light…

Q: calculate frequency and energy of photons of a radiations having wavelength 6000 armstrong.

A: The frequency of light of given wavelength is calculated as,

Q: Refractive index' is equal to' speed of light in material/speed of light in air .a speed of light in…

A: To define Refractive index.

Q: The type of universe that will keep expanding forever is   a. an open universe.   b. a closed…

A: Interpretation -  To tell about the type of universe that will keep expanding forever is -…

Q: Describe the mechanisms of fluorescence and phosphorescence. How could you test the proposed…

A: Fluorescence and phosphorescence are sorts of sub-atomic glow strategies. An atom of analyte ingests…

Q: 1. What pressure will be exerted by 8.00 grams of helium in a 5000. L flask at 25°C? a. 39.1 atm b.…

A: 1) given, Mass of helium gas (m)= 8.00 g Volume of the flask (V) = 5000. L Temperature (T) = 25°C =…

Q: Which of the following statements is NOT true about quantum dots? a. Emits intense fluorescence b.…

A: Quantum dots are semiconductor particles having optical and electronic properties that differ from…

Q: Define Boyle point.

A: Given term,           Boyle point

Q: Two nitro (N0,) groups are chemically bonded to a patch of surface. They can't move to another…

A: Given data:  Rotational kinetic energy Er1=41ε Rotational kinetic energy Er1=30ε…

Q: The refractive index of water is 0.33 .a 1.33 .b O 1.5 .c O 0.5 .d O

A: Refractive index is inversely proportional to velocity of light in that particular medium. So more…

Q: At a quantum level, the atoms of both glass and ground glass should be identical. If the absorption…

A:

Q: move along metal surfaces to catalyze chemical reactions. quantum mechanics is likely to be…

A: According to the question, Hydrogen atoms can move along metal surfaces to catalyze chemical…

Q: 2) The most intense peak of the x-ray diffraction pattern obtained from a freshly laid metallic…

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Q: Some water waves reach the beach at a rate of one every 3.2 s, and the distance between their crests…

A: Given  T= 3.2 s λ = 2.1 m Formula  speed of wave = λT = 2.13.2  = 0.656 m s-1

Q: The distance between two crest or troughs is called the O a energy medium transverse wave wavelength

A: In this question, we will Identify correct option for this Statement.  I will explain you, you can…

Q: What is the value of the Born exponent for Fr+?

A: Born exponent is a characteristic of the compressibility of a solid.

Q: Discuss the fundamentals of fluorescence

A:

Q: What type of light is produced as a result of friction between certain crystals?

A: Triboluminescence is a flash of light produced when a material is subjected to friction, impact or…

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.