what is the wavelenght of an electron accelerated by 10000 volts ?

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: Write the wavefunction for a particle of mass 1.0 g travelling to the right at 10 m s−1.

A: The expression of the wavefunction for a particle is given below,                        Given:…

Q: What is the frequency of a particle of wavelength 752.4 nm?

A: Given  Wavelength  = 752.4 nm 1 nm   = 10-9  meter  752.4   =  752.4 × 10-9  meter     Hence…

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: An electron is trapped in the first excited state (n = 2) inside a box one-dimensional of length 1.0…

A: The maximum possibility of electron location at any time is can be predicted by, P=∫ψn(∆x)dx. The…

Q: Ultraviolet light with a wavelength of 400 nm falls on a specific metal surface. The maximum value…

A: When a radiation of high frequency, high energy is incident on the metal surface then some free…

Q: What is the wavelength in hydrogen spectrum for the emission that results from the transition n = 4…

A:

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

A: There are four types of quantum numbers: Principle quantum number (n) Azimuthal quantum number (l)…

Q: What is the energy (in J) of a photon of light with a frequency of 5.0∗1015 Hz?

A:

Q: An electron in a hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is…

A:

Q: A sodium lamp emits yellow light (550 nm). How many photons does it emit each second if its power is…

A: Given: A sodium lamp emits yellow light 550 nm Calculation: The power and number of photons are…

Q: What is the wavelength (in pm) of a proton traveling at a speed of 6.21 km/s?

A: The wavelength (in pm) of a proton travelling at a speed of 6.21 km/s is calculated as,

Q: How many moles of photons are emitted in one second from a 3.6 MW laser pointer emitting light with…

A:

Q: 13. What is the energy of a 9,300 cm (1 cm = 10² m) wave?

A: To find energy.

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: What is the energy (in kl) of 1 mole of yellow photons of wavelength 275 nm?

A: We first calculate the energy for one photons. Then this value will be multiplied by 6.023 x 1023 to…

Q: What is the frequency of a photon resulting from the transition of n = 6 → n = 1 ? (give answer to 3…

A: Given information,Photon resulting from the transition of n = 6 to n = 1.Use Rydberg’s formula,

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

A:

Q: An argon laser emits photons at a wavelength of 610 nm. c = 3x108 m/s h = 6.6x1034 J/s 1 nm = 10-9 m

A:

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

A:

Q: The power of a red laser (2 - 630 nm) is 3.00 watts (abbreviated W, where 1 W-1 J/s). How many…

A:

Q: The power of a red laser (A = 630 nm) is 4.00 watts (abbreviated W, where 1W = 1 J/s). How many…

A: The photon is composed of electromagnetic waves. They are electric fields travelling in space.…

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: Which has the shorter wavelength, light with frequency 422kHz or light with frequency 422MHz?

A: The frequencies of the given light are = 422 kHz and 422 MHz The wavelength with a short wavelength…

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: What is the frequency in kHz of a photon with a wavelength of 50.7 nm?

A: Frequency is defined as the number of cycles per second. Wavelength is defined as the distance…

Q: Determine: The frequency of light with a wavelength of 25nm. (1.2x1016 Hz)

A: The general expression required to determine the frequency is shown below,

Q: 1: Find the quantum number n corresponding to the excited state of helium 1+ He, if the transition…

A:

Q: A particular sample of radiation has an energy content of 1.09x10^-3 J of energy. Calculate the…

A: Energy and number of moles of photons are related as,

Q: The power of a red laser (λ = 630 nm) is 4.00 watts (abbreviated W, where 1 W = 1 J/s). How many…

A: We have to predict the number of photons.

Q: What is the energy of one mole of photons from a photon with a wavelenght of 327nm?

A:

Q: What is the energy of a photon corresponding to microwave radiation of frequency 1.407 1010 /s?

A: The relationship between the energy of photon and frequency of photon is given by  E = hf where E =…

Q: (a) What are the possible values for mℓ when the principal quantum number (n) is 2 and the angular…

A: Answer:- this question is answered by using the simple concept of quantum numbers which tells about…

Q: What is the energy of a single photon of microwave radiation with a wavelength of 0.0618 meters?…

A: Given,Wavelength = 0.0618 m

Q: When light of sufficient high frequency is used to illuminate a typical metal surface, a…

A: The wavelength will be 72.7 nanometer.

Q: how many photons are there in a 7.00 mJ laser beam of wavelength 785 nm?

A: The wavelength is given as 785 nm and the energy of 1 photon having this wavelength is calculated…

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: How many photons of light with frequency 5.50 × 1015 Hz are required to provide 1 kJ of energy?

A: Total Energy = n × h × f  n = no.of photons  h = planck's constant f = frequency

Q: What are the possible values for the magnetic quantum number (mℓ) when the principal quantum number…

A: Given:  principal quantum number (n) =3 and  angular momentum quantum number (ℓ)= 1

Q: Write the wavefunction for a particle of mass 2.0 g travelling to the left with kinetic energy 20 J.

A: Write the wavefunction for a particle of mass 2.0 g traveling to the left with kinetic energy 20 J.…

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

A:

Q: metal surface has a threshold energy of 225 kJ/mol. After being exposed to light with frequency 7.3…

A: We will first calculate incident radiation energy, then calculate kinetic energy. Atlast find…

Q: What is the frequency (in Hz) of a photon of light with energy of 1.5 * 10^‐21 ?

A: The frequency of a photon is defined as “the number of wavelength travelled per second”. The SI unit…

Q: What is the frequency for the photon that has energy equal to 2.7x1015 J?

A: We know that energy of a photon is related to frequency as,…

Q: Calculate the wavelength of light emitted as an electron undergoes a transition from level n= 110 to…

A: Given that: ninitial = 109 nfinal = 110 To calculate:  wavelength of light emitted? region of…

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.