The eyes of certain reptiles pass a single visual signal to the brain when the visual receptors are struck by photons of a wavelength of 850 nm. If a total energy of 3.15 × 10−14 J is required to trip the signal, what is the minimum number of photons that must strike the receptor?

Q: Hydrogen atoms absorb energy so that the electrons are excited to the energy level n = 7. Electrons…

A: Given information:The transitions of an electron are taking place from n = 7.

Q: 4. If the frequency of light is 2.15 x 10" kHz, what is the wavelength (in nm) and what type of…

A: The relation between frequency and wavelength is given by the relation:…

Q: A certain shade of blue has a frequency of 7.12 x 1014 Hz. What is the energy E of exactly one…

A: The energy of 1 photon of this light = 4.72 x 10-19 J

Q: Gamma rays microwaves ultraviolet light X rays radio waves red light infrared light violet light

A: Radio wave>microwave>infrared>red light>violet light>ultraviolet>x-ray>gamma…

Q: A typical television remote control emits radiation with a wavelength of 940 nm. What is the…

A: Given, Wavelength = 940 nm = 940 x 10-9 m Formula Used, ν=cλ where, v is frequency, c is speed of…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Applying formula E = hv

Q: Consider light with a wavelength of 1.25 x 10¬10 m. The energy of a single photon of this type of…

A: Photon will transfer its energy to the water molecules, and continuous bombardment of photon will…

Q: A certain shade of blue has a frequency of 7.21 x 1014 Hz. What is the energy of exactly one photon…

A:

Q: How much energy (in kJ) do 3.0 moles of photons, all with a wavelength of 655 nm, contain?

A: The relation between energy and no. of photons asgiven byEnergy E=NA*hνE=NA*h*cλν=frequency of…

Q: Green light has a wavelength of 5.0 x 102 nm. What is the energy, in joules, of ONE photon of green…

A: The energy of one photon (E) is calculated using equation (1) in which h is Planck\'s constant, c is…

Q: What is the energy of a photon with a wavelength of 655nm?

A: Given information: Wavelength of a photon is 655 nm

Q: What is the frequency of light that is composed of photons that each has an energy of 3.00 x 10-25…

A:

Q: Sodium-based street lamps emit light at a wavelength of 569 nm. What is the frequency of this light…

A:

Q: A highly excited atom of hydrogen makes a transition from the n = 10 to the n = 9 state and emits a…

A: First, the wavelength value is meters is determined by using following equation,

Q: When light with a wavelength of 198 nm strikes the surface of tin metal. What is the photon energy…

A:

Q: The energy density of starlight in interstellar space is 10–15 J/m3. If the average wavelength of…

A: The number of joules per photon is calculated as,

Q: The human eye can detect light at a frequency of 7.57×1014 Hz in the visible region of the spectrum.…

A:

Q: Careful spectral analysis shows that the familiar yellow light of sodium lamps (such as street…

A: Given : The wavelength of photon 1 = 589.0 nm = 589.0 X 10-9 m                  (Since 1 nm = 10-9…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Frequency of a photon = 7.90 × 1014 Hz  h = 6.626 × 10-34 J.s  Energy of a single photon of blue…

Q: Consider light with a wavelength of 5.41 × 10⁻¹⁰ m. The energy of a single photon of this type of…

A: Given: The energy of single photon = 3.67 × 10⁻¹⁶ J Total required energy = 74000 J The number of…

Q: In Einstein's photoelectric experiment, the kinetic energy of an electron displaced from a metal by…

A: According to Einstein's photo electric effect  E= hcλ=wo+ KE  E= Energy of incident light  h= planks…

Q: In Einstein's photoelectric experiment, the kinetic energy of an electron displaced from a metal by…

A:

Q: If the energy is absorbed by a hydrogen atom in its ground state, the atom is excited to a higher…

A: Let the transition of electron occur from n = 2 to n = 4. Higher energy state (ni) = 4. Lower energy…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A:

Q: Calculate the wavelength of a photon of electromagnetic radiation with a frequency of 91.7 MHz

A: Wavelength and frequency of a photon of an electromagnetic radiation are inversely proportional to…

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: A new technology for lamps gives off green light that has a wavelength of 520 nm ( 1nm = 1 X 10 -9…

A:

Q: Microwave ovens use microwave radiation to heat food. The energy of the microves is absorbed by…

A: 1.To calculate the energy of a photon with a wavelength of 11.2cm, use the Energy relation:

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: Consider light with a wavelength of 5.41 x 10**° m. This light has a frequency of 5.55 x 107 Hz. How…

A: Given : Frequency of light = 5.55 X 1017 Hz

Q: What is the energy of a photon with a wavelength of 826 nm?

A: The energy of the radiation is quantized. The smallest unit of energy of the radiation is known 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: What is the energy (in joules) of a photon of green light having a wavelength of 440 nm?

A:

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Given  Frequency = 6.20 × 1014 Hz  Hz is also written as second-1 Frequency = 6.20 × 1014 sec-1…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Given ,  Frequency of the photon  = 6.50 × 10^14 Hz Plancks constant (h) = 6.626×10^-34  J. S

Q: A highly excited atom of hydrogen makes a transition from the n = 10 to the n = 9 state and emits a…

A: Wavenumber of the photon emitted can be determined using Rydberg equation as follows,

Q: A photon has a frequency of 8.89 x 10° Hz. What is the energy of this photon in Joules? (h = 6.626 x…

A:

Q: The photoelectric effect can be used in engineering designs for practical applications. For example,…

A: Energy = 2.0 x 10-20 J

Q: The yellow light given off by a sodium vapor lamp used for public lighting has a wavelength of 589…

A: Wavelength is related to energy and frequency by E = hν = hc/λ  where E = energy, h = Planck's…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: E=nhv Where, E = energy of radiation h = Planck's constant v = Frequency n = Number of photons

Q: An AM radio station broadcasts at 1010 kHz, and its FM partner broadcasts at 98.2 MHz. Calculate the…

A: Given that : The frequency of AM radio station = 1010 kHz The frequency of FM radio station = 98.2…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A:

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A:

Q: What frequency of electromagnetic radiation is associated with a wavelength of 100.5 nm? In what…

A: Given, the wavelength of electromagnetic radiation λ =100.5 nmwe are asked to calculate the…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Given that,  Frequency of photon light v = 6.70×1014 Hz   Plank constant h = 6.626×10-34 J.s

Q: When a particle of mass 9.1 x 10-28 g in certain 1-D box goes from the n = 5 level to the n=2 level,…

A:

Q: Consider the transition of an electron in the hydrogen atom from n=7 to n=3. Determine the frequency…

A: The energy differences between n=7 and n=3 are given by the Rydberg formula: where ? = wavelength…

Q: How much energy (in kJ) do 3.0 moles of photons, all with a wavelength of 680. nm, contain?

A: According to Planck's quantum equation is  One photon energy (E) is equal to           E = hν E =…

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.