A laser emits 2.13 * 1016 photons per second, each of which has wavelength 625 nm. Find (a) the energy and momentum of a single photon and (b) the power output of the laser.

Q: (a) What is the relationship between the wavelength and thefrequency of radiant energy?

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

Q: What is the frequency of a photon resulting from the transition of n = 4 → n = 1 ? (give answer to 3…

A: Given transition is n=4 to =1.Using the Rydberg equation,

Q: A nitrogen gas laser pulse with a wavelength of 337 nm contains 3.83 mJ of energy.  How many photons…

A: Following information given in the question - Wavelength of the laser pulse = 337 nm = 337×10-9 m…

Q: A 337 nm nitrogen laser puts out 2.00 W of power with a beam 4.90 mm in diameter. The beam is…

A: Energy = hcλ h is planck's constant   c is speed of light   λ is wavelength of light E =…

Q: A nitrogen laser generates a pulse containing 10.1 mJ of energy at a wavelength of 339.6 nm. How…

A:

Q: Calculate the energy, in kJ, for a mole of photons if 1024nm light

A: Energy of a photon is given by E = hc/λ where E = energy in J h = Planks constant = 6.626 X 10-34 Js…

Q: After all that hard work, Thor and Captain America generate a laser with an output of 4.67 x 1019 J…

A:

Q: A nitrogen laser puts out a pulse containing 27.0 m) of energy at a wavelength of 337.1 nm. How many…

A: Total Energy = (n × h × c)/√  √ = wavelength

Q: What is the speed (m/s) of an electron if it has a wavelength of 521 nm?

A: The kinetic energy of an electron is equal to energy of photon (light)Kinetic energy=12mv2=hcλWhere,…

Q: If we locate an electron to within 20 pm, then what is the uncertainty in its speed?

A: As per Heisenberg's uncertainty principle, it is not possible to estimate the exact position or…

Q: The speed of a photon (c) depends on its wavelength (A)

A: Since we know that wavelength and speed of photons are related with each other as…

Q: A common infrared laser operates at 1.06 ´ 103 nm. What is the energy of a photon with this…

A: Given, λ = 1.06 x 103 nm Now calculate the energy of a photon -

Q: A hydrogen atom is in the 3d state.  (a) What is the magnitude of the electron's orbital angular…

A:

Q: A proton in a linear accelerator has a de Broglie wavelength of 122pm. What is the speed of the…

A:

Q: 1. What determines the frequency and period of an oscillating mass?

A: As you didn't specify question number you need hence I'm answering first question only. If you need…

Q: What is the energy (in J) of a  photons of frequency 4.14x1011s-1?

A: The frequency of a photon is directly related to the energy of the photon in accordance with…

Q: Calculate and compare the energy of a photon ofwavelength 3.3 mm with that of wavelength 0.154 nm.

A: Given: Wavelength = 3.3 mm Wavelength = 0.154 nm

Q: To what speed must an electron be accelerated for it to have a de Broglie wavelength of 3.0 cm?

A: De broglie wavelength is given by the formula :                            λ=hmvwhere λ is the…

Q: What is the lowest possible value of the principal quantum number (1) when the angular momentum…

A:

Q: The resolution limit of a microscope is roughly equal to the wavelength of light used in producing…

A:

Q: Calculate the velocity of a neutron whose de-broglie wavelength is 505 pm.

A: De-Broglie equation is given as,

Q: Calculate the linear momentum of photons of wavelength (a) 600 nm. (b) 70 pm. (c) 200 m.

A:

Q: (1) Calculate the energy in a laser pulse containing 10° photons with a wavelength c 120 nanometers…

A:

Q: How many possible values of angular momentum quantum number l are there in the shell with n = 4?

A: The 4 quantum numbers are  1) Principal quantum number (n) = shell number or orbit number  2)…

Q: The width of a spectral line of wavelength 300 nm is measured as 0.01 nm. What is the average time…

A:

Q: A laser used to read CDs emits red light of wavelength 700 nm. How many photons does it emit each…

A: The power and number of photons are related as, N=λP∆thcλ = wavelength  ∆t =  time interval  N = the…

Q: A nitrogen laser puts out a pulse containing 35.2 mJ of energy at a wavelength of 337.1 nm. How many…

A: Given,

Q: How many moles of photons are in a pulse if the pulse has a wavelength of 600 nm and a total energy…

A:

Q: of

A: 1nm = 10^-9 m  So ;  Wavelength = 275 •10^-9 m

Q: Suppose that photons of blue light (430 nm) are used to locate the position of a 2.80-g Ping-Pong…

A:

Q: Calculate the speed of an electron with a wavelength of 820 nm

A: De-Broglie wavelength: It states that any particle of matter that has linear momentum is also a…

Q: The maximum kinetic energy of photoelectrons ejected from a tungsten metal surface by monochromatic…

A: According to photo electric effect,   KE=hc/​λ−W       [ w = work function]   ​

Q: Is it correct that all photons of the same frequency have the same energy?

A: Yes, all photons having same frequency would have same energy.The energy of photons is different…

Q: The power of a red laser (2 = 630 nm) is 2.25 watts (abbreviated W, where 1 W = 1 J/s). How many…

A: We have to calculate the number of photons.

Q: An argon laser has a frequency of 6.56 x1014 Hz.  Calculate the energy of one photon from this…

A: Energy of a photon ca be obtained by the formula: E = hf, where h is planks contant( h=6.626x10-34…

Q: A helium-neon laser emits light at 633 nm. What is the energy of a single photon from this laser?

A: 633 nm = 633 x 10-9 mh = 6.626 x 10-34Jsc = 3 x 108 m

Q: Calculate the wavelength of a softball with a mass of 100 g traveling at a velocity of 35m/s,…

A: Given, mass of softball =100  g =0.1 kgvelocity of ball =35 msecwe are asked to calculate the…

Q: How many values are there for the magnetic quantum number when the value of the angular momentum…

A: The magnetic quantum number is given as ml and the angular momentum quantum number is given as l.

Q: Calculate the probability that a particle will be found in a tiny slice of space between 0.49L and…

A:

Q: What is the lowest possible value of the angular momentum quantum number (l) when the magnetic…

A: Value of magnetic quantum number depends on the value of azimuthal quantum number (l).

Q: A laser pulse with wavelength 532 nm contains 3.85 mJ of energy. How many photons are in the laser…

A:

Q: Calculate the energy of a mole (einstein) of photons with wavelength 485.4 nm.

A: The energy relationship for photon is given below.

Q: The PIB (Particle in a box) transition that absorbs the photon of longest wavelength is from the n 1…

A: Given that in case of partilce in a box the transition that absorbs the photon of longest wavelength…

Q: A laser emits a laser pulse at a frequency of 3.76 x 10^12 Hz with total energy = 2.46 x 10^-17 J.…

A: Given:Frequency = 3.76×1012 s−1

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.