The watt is the derived SI unit of power, the measure ofenergy per unit time: 1 W = 1 J/s. A semiconductor laser in aCD player has an output wavelength of 780 nm and a powerlevel of 0.10 mW. How many photons strike the CD surfaceduring the playing of a CD 69 minutes in length?

Q: A laser produces 20.0 mW of red light. In 1.00 hr, the laser emits 2.29x10^20 photons. What is the…

A:

Q: 5.25 x10 "J is m. 4) The wavelength of a photon thathas an energy of

A: Energy of photon = 5.25 × 10-19J

Q: A stellar object is emitting radiation at 3.55 mm. (a) Whattype of electromagnetic spectrum is this…

A: a) 3. 55 mm= 3.55 x 10-3 m. So, the radiation is microwave.

Q: (a) What is the frequency of radiation that has a wavelengthof 10 μm, about the size of a bacterium?…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A 100-watt light bulb radiates energy at a rate of 100 J/s. (The watt, a unit of power or energy…

A:

Q: A laser produces 20.0 mW of red light. In 1.00 hr, the laser emits 2.29 x 1020 photons. What is the…

A: Given that: power = mW time = 1.00 hr number of photon = 2.29×1020 To find: wavelength of laser?

Q: An excited hydrogen atom emits a photon with a wavelength of 434.1 nm. What is the frequency of this…

A: Given,Wavelength = 434.1 nm

Q: 6.21 The retina of a human eye can detect light when radiant energy incident on it is at least 4.0 ×…

A: Given: Radiant energy=4.0×10-17 J Wavelength= 585nm To find: The number of photons

Q: The microwaves used to heat food have a wavelength of 0.125 m. What is theenergy of one photon of…

A: Given: The wavelength of microwaves=0.125 m The expression used to calculate the energy of  one…

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: What is the frequency of an electromagnetic wave that has a wavelength of4.55 × 1 0 −3 m? 1.00 × 1 0…

A: Given: Wavelength = 4.55 × 1 0 −3 m

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

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Q: A carbon dioxide laser produces radiation with a wavelength of 1.06 x 104 nm.  What is the frequency…

A:

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.0 ×…

A: Given:Light energy detectable = 4.0 × 10-17 J.Wavelength of photons = 485 nmWe need to find the…

Q: A particular laser consumes 200.0 Watts of electrical power and produces a stream of 1.34×1019 1050…

A: Percent efficiency can be defined as the energy produced divided by the energy consumed multiplied…

Q: A heat lamp produces 32.8 watts of power at a wavelength of 6.5 micro meters. How many photons are…

A: Energy of one photon can be determined using Planck’ equation.

Q: What is the energy of a photon that has a wavelength of 488.7 nm?

A:

Q: A NAVY system operates with a frequency of 76 Hz. What is the wavelength of this radiation in…

A: The energy is related to frequency of radiation as, E = hf where E = energy of radiation in J h =…

Q: What wave length of radiation has a radiation has photons of energy 2.87 ×10-18J?In which portion of…

A: The electromagnetic spectrum consists of different types of EM-radiations having different…

Q: An electron acquires a kinetic energy of 2.25 eV (electron-volt). What is the velocity (speed ) of…

A: a. The kinetic energy of electron: =2.25 eV=2.25×1.6×10-19 J= 3.6×10-19 J

Q: A stellar object is emitting radiation at 3.55 mm. (a) Whattype of electromagnetic spectrum is this…

A: (a) 3.55 mm= 3.55 x 10(to the power of-3)m. So, the radiation is microwave.

Q: A hydrogen atom in the ground state absorbs a photon of wavelength 95.0 nm. What energy level does…

A: The Rydberg equation is given below.

Q: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

A: Wavelength can be calculated using the given equation:

Q: Silver has a work function, Φ, of 4.64 eV. If a sample of silver is bombarded with 215 nm photons,…

A: The work function of silver is 4.64 eV. The wavelength of photon bombarded with silver is 215 nm.

Q: The meter was defined in 1963 as the length equal to 1,650,763.73 wavelengths of theorange-red…

A: Given: 1m = 1,650,763.73 wavelengths of theorange-red radiation emitted by the krypton-86 atom

Q: The retina of a human eye can detect light when radiant energy incident on it is at least  4.0  ×…

A: Energy of the electromagnetic radiation   (Ep) = hf Energy of the photon of blue light (Ep) = hc/ λ…

Q: What is the frequency for a photon with wavelength 9.14 km

A: Given values-> Wavelength = 9.14km

Q: What is the frequency of light with a wavelength of 0.440 um?

A: • The values provided in the question are:-  i) Wavelength of a light, λ = 0.440 μm    Since, 1 μm…

Q: A molecule emits a photon with 6.347x10–19 J of energy. What is the wavelength, in nanometers, does…

A: Given:Energy of photon  =6.347 x 10-19 JTo find: Wavelength of photon, λ = ?also we know,speed of…

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: 5. Yellow light has a wavelength of about 575 nm. vieoerOT:enois esp er beldene lertt li aew isrw a.…

A:

Q: What is the energy of a photon of light with a wavelength of 2.00cm?

A: Given that,

Q: A molecule emits a photon with 6347x10–19 J of energy. What is the wavelength, in nanometers, does…

A: Given values, Energy E= 6347×10^-19 J Wavelength =?

Q: A 239 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a…

A: Welcome to bartleby ! We have to calculate number of photons .

Q: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

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

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.0×10−17…

A: Given, Total energy is 4.0×10-17 J.Wavelength of the incident light is 595-nm. Energy of one photon…

Q: A popular kitchen appliance produces electromagnetic radiationwith a frequency of 2450 MHz. With…

A: Given: Frequency of radiation, f =2450MHz=2450 x 106Hz…

Q: A sample of electromagnetic radiation has a frequency of 1.7x10^6 Hz, what is the wavelength for…

A:

Q: The retina of a human eye can detect light when radiant energy incident on it is at least 4.0×10−17…

A: We know that energy of a photon (E) is related to wavelength (λ) and number of photon (n) as E =…

Q: a) What is the frequency of radiation that has a wavelength of 10 μm, about the size of a bacterium?…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: What is the wavelength of an electron

A:

Q: (A) A photon has a wavelength of 599 nm. Calculate the energy of the photon in joules. Enter your…

A: Since you have posted multiple un-related questions, we are entitled to answer the first only.

Q: What is the frequency (ν), in Hz(1/s), of a gamma-ray with a wavelength (λ)

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: If a laser emits 5.0 x 1019 photons per second and transfers a total of 80.58 J of energy over 2.06…

A: Given: A laser emits 5.0 x 1019 photons per second. The amount of energy transferred = 80.58 J in…

Q: A particular laser consumes 150.0 Watts of electrical power and produces a stream of 3.98×1019 1087…

A: Using the formulae:

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.