The threshold frequency of a metal can be determined from measurements of the speed of the ejected electrons. Electrons were ejected from a metal with a speed of 5.00 x10^5 m.s^-1 when irradiated by light having a wavelength of 390 nm. Determine the threshold frequency of this mental

Q: What is the wavelength of neutron traveling at the speed of 4.54 km/s?

A: Formula : Lambda = h/mc

Q: The work function of titanium metal is 6.93 x 10-19 J. Calculate the kinetic energy of the ejected…

A:

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: Calculate the wavelength (m) for an electron with a mass of 9.11 x 10-31kg and a kinetic energy of…

A:

Q: A proton travels through space with an effective wavelength of 3.00 x 10^-12m? What is its speed?

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

Q: Find the velocity of an electron emitted by a metal whose threshold frequency is 2.20×1014 s−1when…

A: To calculate the velocity, it is required to calculate the kinetic energy of the electron, which can…

Q: The mass of a golf ball is 45.9g . If it leaves the tee with a speed of 65.0m/s, what is its…

A: Mass (m) = 45.9 g = 0.0459 Kg Speed (v) = 65.0 m/s Plank's constant (h) = 6.63 × 10-34  Kg.m2.s-2.s…

Q: When a metal is irradiated with light an electron is ejected with a speed of 1.01 x 106 m/s. If the…

A: Given data: Speed = 1.01 x 106 m/s Work function = 6.88 x 10-19 J

Q: the wavelength of a neutron moving at 1775 m/s?

A: The required solution is as follows:

Q: What should be the speed of a beam of particles of mass 9.25×10-28 g in order to have a wavelength…

A: Given : Mass of particles = 9.25 X 10-28 g = 9.25 X 10-31 Kg                                (since 1…

Q: A ball with a mass of 50.3 grams is hit at 42.6 m/s. What is the deBroglie wavelength associated…

A: Given data is as follows: The mass of ball = 50.3 g The velocity of the ball = 42.6 m/s The de…

Q: A laser pointer used in a lecture hall emits light at 445 nmnm. What is the frequency of this…

A: We have wavelength of light as 445 nm, we have to calculate the frequency of this light in s-1  upto…

Q: Which represents a higher energy frequency of electromagnetic radiation, 1710 cm−1 or 3000 cm−1 .…

A: Higher the frequency higher will be the energy. So, 3000 cm-1 represents higher energy than 1710…

Q: Light with a wavelength of 2.50 × 10-7 m falls on the surface of a piece of chromium in an evacuated…

A: a) The maximum kinetic energy of photoelectrons emitted by light of frequency v is given by,

Q: Consider the following electromagnetic wave. It takes 1 s for the wave to propagate (travel) from…

A: Given: wavelength = 1.6x10-3 m

Q: The minimum energy needed to eject electrons from chromium metal via the photoelectric effect is 434…

A: The relation between the energy and wavelength of radiation is as follows, Given: The minimum…

Q: What is the wavelength of an electron that has a mass of 9.10938188 ✕ 10−31 kg and a velocity of…

A:

Q: What is the wavelength of an electron moving with a speed of 5.55 x 10^5 m/s?

A: Given;

Q: Determine the mass of a ball with a wavelength of 3.45 x 10-34 m and a velocity of 6.55 m/s.

A:

Q: What is the wavelength, in nanometers, of light with a frequency of 1.24×1015 Hz?

A: We Know that speed of light wave is related to the frequency and wavelength of light. The relation…

Q: An electron in the n=5 level of a H atom emits a photon of wavelength 1281 nm. To what energy level…

A: The energy of electron in nth orbit of hydrogen is given by En = [  -2.18×10-18 / n2 ] J The…

Q: The watt is the derived SI unit of power, the measure ofenergy per unit time: 1 W = 1 J/s. A…

A: Given:  output wavelength = 780 nm            power = 0.10 mW.         time= 69 minutes To find :…

Q: #30 how to find threshold frequency given speed and wavelength?

A: The kinetic energy of the electrons is calculated as,

Q: In an experiment, a student found that a maximum wavelength of 351 nm is needed to just dislodge…

A:

Q: After careful analysis, an electromagnetic wave is found to have a frequency of 7.8 × 1 0 6 Hz. What…

A: Energy of a wave can be given by two these two relations: E=h×speed of waveλ Also, E=h×ν  where λ is…

Q: Assuming that the smallest measurable wavelength in an experiment is 0.850 fm, what is the maximum…

A: Given: de Broglie wavelength λ = 0.850 fm Velocity (v) of object =  675 m⋅s−1 Known: Planck's…

Q: Assuming that the smallest measurable wavelength in an experiment is 0.450 fm, what is the maximum…

A: The given data is as follows: Wavelength λ = 0.450 fm = 0.450×10-15 m Velocity v = 381 m.s-1 The…

Q: The mass of a golf ball is 45.9 g . If it leaves the tee with a speed of 73.0 m/s , what is its…

A: De Broglie equation provides the relationship between wavelength of a particles and its mass which…

Q: Calculate the associated wavelength of an electron traveling at 4.0 x 109 cm/s.

A: Speed of an electron = 4.0×109 cm/s.

Q: When a photon of light with wavelength 101.7 nm is shone upon a metal surface with a work function…

A: To find velocity.

Q: Assuming that the smallest measurable wavelength in an experiment is 0.710 fm, what is the maximum…

A: given :-  wavelength = 0.710 fm   speed = 171 m.s-1  To calculate :-  mass of an object (in kg)

Q: The watt is a unit of power, equivalent to 1 joule per second. If a single solar panel can generate…

A: Solar panel power generated = 125 watts 1 watt = 1 J/sec Energy generated = 125 J/sec

Q: To resolve an object in an electron microscope, the wavelength of the electrons must be close to the…

A: Given, Diameter = 3.10nm Mass of an electron = 9.11×10−31 kg

Q: What is the wavelength in Angstroms of an electron moving with a speed of 5.673 x 106 m/s in a…

A:

Q: The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 68.0 m/s, what is its…

A: Hi. Since part A has been solved by you, so we will solve Part B for you. Thanks

Q: The work function of titanium metal is 6.93 × 10−19 J. Calculate the kinetic energy of the ejected…

A: Given: work function = 6.93 × 10−19 J frequency   = 5.278 ×1015 s−1 so first we have to calculate…

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: How fast must a 144.9−g baseball travel in order to have a de Broglie wavelength that is equal to…

A: De-Broglie equation is given as,

Q: The work function (ϕ) for the a metal is 7.00 x 10 -19 J. What is the longest wavelength of…

A: Given, work function (ϕ) for metal is 7.00 x 10 -19 J.

Q: Assuming that the smallest measurable wavelength in an experiment is 0.430 fm, what is the maximum…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: The kinetic energy of an electron is 20.5 keV; what is the frequency of this electron? Where 1 eV =…

A: de- Broglie's hypothesis  Any particle which have matter wave also have momentum. Alternatively an…

Q: A photon with a wavelength of 162.7 nm was used to induce the photoelectric effect. If the work…

A: Wavelength of photon = 162.7 nm Work function of metal = 6.49 eV

Q: A laser pointer used in the classroom emits light at 4950 Å, at a power of 4.00 mW. (One watt is the…

A: Energy of one photon =hCλWhere , h= Plank's constant                 6.626x10-34J-S            C=…

Q: Radio waves of wavelength 6.00 × 102 m can be used to communicate with spacecraft over large…

A: Given data, Wavelength λ= 6.00 x 102 m (a) Formula used to calculate frequency,…

Q: What is the frequency associated with a red photon that has a wavelength of 612 nm? Please assume c…

A: Recall the relation between frequencyγ and wave lengthλ as follows                γ=cλHere,wave…

Q: wavelength

A:

Q: The threshold frequency of a metal can be determined from measurements of the speed of the ejected…

A: SOLUTION: Step 1: Threshold frequency refer to the minimum frequency required to eject an electron…

Q: An excited ion emits radiation at a wavelength of 690.2 nm in the visible range of the spectrum.…

A:

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.