Use Einstein's photoelectric equation to explain the laws of photoelectric effect. Electrons are emitted by a certain surface when it is irradiated normally with ultraviolet radiation of wavelength 450nm. If the intensity of the radiation is 700Wm-2 , calculate the number of ultraviolet photons that strike an area of 1.00 × 10-4m2 of this surface in half a second

Q: A metal alloy of unknown composition was bombarded with 204 nm photons to determine its…

A: Given,  Wavelength of photon= 204 nm Velocity of electrons ejected= v= 6.70*105 m/s Mass of…

Q: Describe what is the photoelectric effect? How did experimental observations of this phenomenon…

A: The photoelectric effect deals with metals emitting electrons when light shines on them. This…

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: For your WiFi with frequency of 900 MHz, what wavelength does it have?   a. 3 x 105 m   b. 3 x 1017…

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

Q: An excited H atom with the electron in energy level 6 emits a photon of wavelength  2626 nm.   What…

A: Step:1   De-excitation  of electron:-   1λ=R1nf2-1ni2where λ=wavelength            R=1.097×107 m-1…

Q: With some manipulation, the Rydberg equation can be rewritten in the form (뉴 2) -#) 1 E = constant x…

A: Recall the given equations        E=constant×1nf2-1ni2and 1λ=RH×1nf2-1ni2Again recall the following…

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: An energy of a near infrared/microwave wavelength in aqueous media (η = 1.3332) is 2.91×10-19pJ .…

A: •Given:- Energy(E)=2.91×10-19 pJ •As 1 pJ= 10-12 J   than E=2.91×10-19×10-12 J…

Q: Q1) Calculate the energy in eV required to excite an electron in a hydrogen atom from the n=1 to the…

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Q: A power generation plant generates electricity by burning fossil fuels. It is known that combustion…

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Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 94.92 nm. It then…

A:

Q: wavelength of a light photon (in units of nanometers) and the associated frequency of that photon…

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Q: * 00 $寸 An electron microscope focuses electrons through magnetic lenses to observe objects at…

A: We have find out wavelength.

Q: The energy emitted by a light is 286000 J. Calculated the wavelength of an emitted photon.

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Q: The absorption peaks of chlorophyll a are at 665 nm and 465 nm. Assume that a plant can convert all…

A: Energy of a radiation is affected by its frequency or its wavelength. The radiant energy (E)…

Q: A 368 g sample of water absorbs infrared radiation at 1.06 × 104 nm from a carbon dioxide laser.…

A:

Q: Microwave ovens emit microwave energy with a wavelength of 12.8 cm.12.8 cm. What is the energy of…

A: Relation between energy and wavelength of a photon…

Q: Ozone in the stratosphere absorbs ultraviolet light of wavelengths shorter than 320 nm, thus…

A: Wavelength is defined as the distance between two crests and two troughs. It is represented by…

Q: Q1) Calculate the energy in eV required to excite an electron in a hydrogen atom from the n =1 to…

A: The question is based on the concept of atomic structure. we have to calculate energy of excitation…

Q: A ground-state atom absorbs light of wavelength 400 nm to be promoted to an excited state. Find the…

A: The difference in energy between two states is related to wavelength of light absorbed by ground to…

Q: Exposure to high doses of microwaves can causes cellular damage. Estimate how many photons with a…

A: Mass of the eye (m) = 11 g Specific heat capacity value (c) = 4 J/gK Change in temperature (∆T) = 5…

Q: What is the energy in joules of one photon of microwave radiation with a wavelength 1.22 x 10 8 nm

A: Energy can be calculated using Planck equation The equation states that energy of a photon is…

Q: Give an approximate range of wavelengths for type of electromagnetic radiation and summarize the…

A: Electromagnetic radiations are classified based on their frequency ν or their wavelength λ = c/ ν.

Q: Wavenumber (ν) is another way to describe light. Basically it tells us how many wavelengths are…

A: The relation between wavelength and frequency is given by, ν=cλν=frequency of radiationλ=wavelength…

Q: Given the relationship between wavelength, frequency and the speed of light, calculate the frequncy…

A: According to the Plank quantum theory the energy of the photon of light is given by: Where E =…

Q: Wave, light, and energy emission in atoms: a. Given the speed of sound as 343.2 m/s, calculate the…

A: (a) We have: Speed of sound = 343.2 m/s Wavelength = 15 m We need to calculate the frequency of this…

Q: Hydrogen atoms are excited by a laser to the ?=4n=4 state and then allowed to emit. What is the…

A: When I lectron jump from higher energy shell to the the lower energy shell then it emit energy in…

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: Calculate the de Broglie wavelength of a 0.56 kg ball moving with a constant velocity of 26 m/s…

A: de Broglie wavelength = h/mv Where h is plank constant Given that m= 0.56kg , v = 26 m/s

Q: certain metal must absorb radiation with a wavelength no larger than 275 nm in order to eject an…

A: The solution is as follows:

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: Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies.…

A:

Q: calculate the de Broglie wavelength of electrons accelerated through 50kV. (b) Is the relativistic…

A: Electrons have a rest mass, unlike photons, they have a de Broglie wavelength which is really…

Q: Calculate the longest wavelength of the electromagnetic radiation emitted by the hydrogen atom in…

A: For maximum wavelength n1=6 and n2= 7 Z for Hydrogen =1 Use relation for shell and wavelength.

Q: Calculate the energy (E) and wavelength (l) of a  photon of light with a frequency (n) of 6.165 x…

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Q: It is possible to convert radiant energy into electrical energyusing photovoltaic cells. Assuming…

A: The wavelength of UV radiation and IR radiation is 100-400 nm and wavelength of IR is 780 nm -1mm…

Q: What is the wavelength of light (in mm) for a photon with a frequency of 1,355.0 MHz? (Remember that…

A: Given, c = 2.998 x 108 m/ s Wavelength = ?

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: Calculate the energy in kJ/mole for a photon of light with wavelength 671 nm if n = 1

A: Energy of the n photons of light is given by the formula E=nhcλ where h is the Planck's constant, c…

Q: Explain why the emission spectrum of an atom or molecule depends on its arrangement of electrons.

A: Electrons can be defined as the negatively charged particles that can revolve around nucleus in…

Q: 14. Zinc metal has a work function of 5.816 x10-19 J. Consider the following questions regarding the…

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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: With some manipulation, the Rydberg equation can be rewritten in the formE=constant×(1nf2−1ni2)which…

A: Energy of transition can be calculated using Rydberg equation.

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: calculate the energy absorbed per mole of O2 produced, giving the answer in kJ/mol.

A: Given: λ=275 nm O3(g) + hν → O2(g) + O(g)  Formula used: E=hcλ Where, h is the Planck's constant c…

Q: The electron in a hydrogen atom, originally in level n = 10, undergoes a transition to a lower level…

A: When electron in a hydrogen atom drops from some higher energy level to a lower one, it releases…

Q: Calculate the energy (in J) of photons with frequency of 27.3 MHz O 2.21 x 1014 O 1.81 × 10-19 O…

A:

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.