(a) The surface of a metal is illuminated with light of wavelength 590nm. A PD of 0.15V is applied between the metal surface and the collecting electrodes in order to prevent the collection of electrons. Calculate: (i) The work function of the metal. (ii.) The work done against the most energetic photoelectrons. (iii.) The speed of the most energetic electrons.  (b.) Light of varying frequencies is incident on the surface of three different metals x, y and z. The work functions wo of the metals are such that w0x < w0y < w0z. Sketch on the same axes graphs to show how the maximum kinetic energies of photoelectrons vary with frequency.

Q: A 232-lb fullback runs 40 yd at 19.8 +- 0.1 mi/h. (a) What is his de Broglie wavelength (in meters)?…

A: De Broglie wavelength: It is the wavelength associated with particle which having very less mass and…

Q: What is the kinetic energy (in J) of a neutron with a wavelength of 73.2 pm?

A: Wavelength = 73.2 pm = 73.2 x 10-12 m

Q: 5 Calculate the de Broglie wavelength of (a) a mass of1.0 g travelling at 1.0 m s-1• (b) the same.…

A: (a) a mass of 1.0 g travelling at 1.0 m s-1: De Broglie wavelength, λ=hmv…

Q: Calculate the frequency of green light with a wavelength of 517 nm.

A: To find the frequency, the below formula has to be used.Where,f is the frequency.c is the speed of…

Q: Neutron diffraction is an important technique for determiningthe structures of molecules. Calculate…

A:

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A: The concentration of the chlorophyll is proportional to the absorbance. The capacity of any…

Q: The series of emission lines of the hydrogen atom for whichnf = 3 is called the Paschen series. (a)…

A: a) Paschen series fall in infrared region  i.e frequency &gt; 820 nm

Q: Calculate the wavelength of a stone (mass m=0.5kg) that is laying on the beach.

A:

Q: Calculate the energy (in joules) of (a) a photon with wavelength 2.11 × 102 nm, and (b) a photon…

A: Answer:- This question is answered by suing the simple concept of calculation of energy using the…

Q: For a hydrogen atom, calculate the energy of the photon that would be emitted for the orbital…

A: Data given: Initial transition, n1 = 4Final transition, n2 = 1Rydberg constant, R = 1.09678×107 m–1

Q: Consider an element with energy levels Eo and E* and degeneracies of those energy levels go and g",…

A: Energy levels Eo and E*Degeneracy of those energy levels go and g*N*/No  = ?Temperature,T = 3603…

Q: Semiconductor materials are the basis of modern electronics Conduction band (e.g. the transistors,…

A:

Q: As discussed in the text, we can draw an analogy between theattraction of an electron to a nucleus…

A: Given:It is given that,"an analogy between theattraction of an electron to a nucleus and the act of…

Q: An unknown metal sample is interrogated using a beam of X-rays to liberate electrons which are then…

A: Given that the wavelength of x-rays is 9.54 nm. Kinetic energy of electron is 7.3716 x 10-18 J

Q: Calculate the temperature at which the wavelength of a neutron is 1.36 Å. 4.0 K

A: The answer is given below

Q: An X-ray photon with a wavelength of 0.950 nmnm strikes a surface. The emitted electron has a…

A: Binding enrgy is minimum energy required to emit electron from metal surface it is also called as…

Q: What is the wavelength of the line in the hydrogen spectrum that results when an electron falls from…

A: Given: Initial level = 4 And final level = 2

Q: (a) The position of an electron is known to within 8.83 Å (8.83\times 10 - 10 m). What is the…

A: We are able to find out the answer to this problem by applying Heisenberg's uncertainty principle.…

Q: The blue solution formed when an alka li metal dissolves in liquid ammonia consists of the metal…

A:

Q: a ease and wavelength for all transitions indicated using the following equation Also correction the…

A: Given values as,

Q: atom initially in its ground state h-, absoks a photon and ends absods a photon and ends up an…

A: 1) initial position of electron , ni = 1 Final position of electron nf = 3

Q: A photon has a frequency of 4.8× 109Hz.b.(8) Calculate the energy (in joules) of this photon.

A: Energy of a photon is related to its frequency with the help of the following formula :…

Q: An argon ion laser emits light of wavelength of 488 nm.(a) Calculate the frequency of the light.(b)…

A: (a)

Q: The work function of metal is the minimum energy required to produce photoelectric effect on that…

A:

Q: It is interesting to speculate on the properties of a universe with different values for the…

A: Here we have to calculate the following properties for microscopic particles: De-Broglie…

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.