A 337 nm nitrogen laser puts out 2.00 W of power with a beam 4.90 mm in diameter. The beam is pointed directly at a pinhole which has a diameter of 1.90 mm. How many photons of light will travel through the pinhole per second? Assume that the intensity of the light is equally distributed across the whole area of the beam.

Q: Calculate the maximum wavelength, ?max, of electromagnetic radiation that could eject electrons from…

A:

Q: laser pulse at 500. nm contains 4.95 mJ of energy. How many photons are in the laser pulse

A: E = nhv  E is energy n is number of photons h is planck's constant  v is frequency and it is ratio…

Q: Microwave ovens emit microwave energy with a wavelength of 12.5 cm.12.5 cm. What is the energy of…

A: Energy of photon is defined as , E= hv = hc/Wavelength  h = planck constant = 6.63 ×10^-34  c =…

Q: What is the energy of a photon from the violet portioin of the rainbow if it has a frequency of 7.23…

A:

Q: Determine the energy of a photon with a 678.0 nm wavelength.  I asked this question before the…

A: The wavelength of the photon is = 687.0 nm The energy of the photon is =?

Q: A particular laser consumes 150.0 watts of electrical power and produces a stream of 1.33x10^19…

A: Given, 150watts = 150 J/s

Q: Calculate the DeBroglie wavelength of a Yukon Denali (the sport utility vehicle) with a mass of 2480…

A: Given: Mass = 2480 kg velocity=70.0 miles per hour

Q: The line spectrum of hydrogen shows that excited hydrogen atoms emit electrons having only certain…

A: answer- The line spectrum of hydrogen shows that excited hydrogen atoms 4 . emit photons having only…

Q: A foolish man attempted to rob a bank but only brought his red laser pointer, with a wavelength of…

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: The red lasers used to read the barcodes of products at the grocery stores produce light with a…

A: Energy of a photon E = hcλ where, h = plank's constant = 6.63×10-34kg m2s c = speed of light =…

Q: Calculate the maximum wavelength, ?max, of electromagnetic radiation that could eject electrons from…

A:

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: Calculate the energy of photon corresponding to a wavelength of 425 nm. Also calculate the energy of…

A: Energy of 1 mole photons = NA.hcλ                                           =…

Q: A laser pulse with a wavelength of 515 nm contains 4.40 mJ of energy. How many photons are in the…

A: In the realm of quantum physics, light is not just a continuous wave but is composed of discrete…

Q: Calculate the de Broglie wavelength of a 148 g ball traveling at 34.25 m/s. Assume the ball can be…

A: Given -> Weight of ball = 148 gm = 0.148 kg(1kg=1000g) Speed = 34.25 m/s

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 ground state hydrogen atom absorbs a photon of light having a wavelength of 92.05 nm.92.05 nm. It…

A:

Q: A 9.00 mL ampule of a 0.150 M solution of naphthalene in hexane is excited with a flash of light.…

A: In the world of molecular interactions, the emission of photons is a fascinating phenomenon, often…

Q: 3. An photon with a wavelength of 250. nm interacts with an electron in the n = 1 principal energy…

A: The electrons are capable of moving to a higher energy level by absorbing energy in the form of…

Q: 1. The characteristic red color of blood is due to the very strong absorption of light at a…

A:

Q: A bank robber forgot his tools, and only brought a red laser pointer, with a wavelength of 650. nm.…

A: We have to calculate the number of photons required.

Q: A pulse of monochromatic light consisting of 0.230 moles of photons contained a total energy of 67 0…

A: •Energy of 0.230 mole photon = 67 kJ = 67000 J•We have to calculate wavelength of light.

Q: A 753 nm krypton laser puts out 4.00 W of power with a beam 4.30 mm in diameter. The beam is pointed…

A:

Q: A laser with an energy of 2.65 kJ has a photon wavelength of 1300. nm. How many photons does this…

A: We can solve this problem by using following equation E = h×c / λ E = energy h = planck's constant c…

Q: Calculate the energy of the photon with a wavelength of 600 nm in kJ/mol.

A: The objective of this question is to calculate the energy of a photon with a given wavelength in…

Q: A nitrogen laser puts out a pulse containing 35.2 mJ of energy at a wavelength of 337.1 nm. How many…

A: Given,

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

A: Given values-> Wavelength = 9.14km

Q: NASA communicates with the Space Shuttle and International Space Station using Ku-band microwave…

A: Given : Frequency of wave = 17 GHz Since 1 GHz = 109 Hz Hence the frequency of wave in Hz = 17 X 109…

Q: A local FM radio station broadcasts at a frequency of 90.2 MHz. Calculate the wavelength at which it…

A: Given: The frequency of FM radio station = 90.2 MHz We have to calculate the wavelength at which it…

Q: A photon of ultraviolet light possesses enough energy to mutate to a single strand of human DNA.…

A: Given, wavelenght of uv light λ=250 nm =250×10-9 mspeed of light =3.0×108 m/secplanck constant…

Q: 7. In the UV-vis spectrometer you used, JASCO 730, sketch the light path(s) from the source to the…

A: The principle of measurement for UV-Visible Spectroscopy or  is relatively straightforward and…

Q: A ground-state H atom absorbs a photon of wavelength 91.50 nm. What higher energy level did the…

A:

Q: Calculate the de Broglie wavelength of a 142 g ball traveling at 42.36 m/s. Assume the ball can be…

A:

Q: The laser has a light with a wavelength of (8.07x10^2)nm.  Calculate the frequency of this light.

A:

Q: Scientists are studying ways to improve the efficiency of solar cells by studying a process called…

A: Given data contains, Wavelength of photon 1 = 853 nm  Wavelength of photon 2 = 835 nm  The energy of…

Q: Determine the energy of a photon with a wavelength of 454 nm.

A: Given wavelength of light = 454 nm

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.