Assuming that sunlight produces 3.066 ? 1022 UV Photons/m2s and that the skin absorbs one-half of these photons (and reflects the other half), calculate the total UV energy absorbed over 0.42 m2 of skin that is exposed to sunlight for one hour. Assume that the average wavelength of the UV photons is 330 nm.

Q: 35 ghz, what is the wavelength of the photons emitted, in m?

A: 1ghz = 10^9 hz We have  Velocity of light =frequency ×wavelength

Q: Place the following types of radiation in order of increasing wavelength by numbering them from 1…

A:

Q: 9)When Lithium Balts are heated in a flame, they emit red light.wH are healed inaflome in th Same…

A: #9  When atoms receive energy from some source—they become excited—they can release this energy by…

Q: How would you expect the diffraction pattern of photons and electrons to change if you increased the…

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Q: Organize the following forms of radiant energy, in order of increasing wavelength. Radio Waves…

A: The radiation shows the properties of electric and magnetic nature of light also known as…

Q: An AM radio station broadcasts at 1030 kHzkHz , and its FM partner broadcasts at 98.3 MHzMHz .…

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Q: Calculate the frequency of green light with a wavelength of 517 nm.

A: To find the frequency, the below formula has to be used.Where,f is the frequency.c is the speed of…

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

A: The relation between energy of a photon and wavelength is as follows,…

Q: Consider x-ray radiation with a frequency of 4.09  1016 Hz. How many photons are contained in a…

A: The relation between energy and frequency is given by

Q: The total energy of a mole of photons of a particular type of IR light is 10.7025 kJ. What is the…

A: Energy of one photon is inversely proportional to the wavelength of the radiation. Higher the energy…

Q: A Na ion absorbs a photon of 589.5 nm Determine the frequency of the photon.

A:

Q: A liquid is exposed to infrared radiation with a wavelength of 4.04x10-4 cm.4.04x10-4 cm. Assume…

A: Heat energy and number of photons are related as :  E = nhv  where , E = heat energy in Joules. n =…

Q: An argon ion laser puts out 4.8 W of continuous power at a of 532 nm. The diameter of the laser beam…

A: we have to calculate the number of photons that travel through the pinhole per second

Q: 4) How many photons are contained in a burst of light (536.2 nm) from a lamp that contains 606.3 kJ…

A: The energy of electromagnetic radiation is quantized. The smallest unit of energy in the radiation…

Q: Rank the following lights in order of increasing wavelength starting with the smallest wavelength…

A: As we Know, E = hv = hc / λWhere λ is wavelength, v is frequency, c= speed of light, h = Planck…

Q: A person does not apply sunscreen and has 0.43 m2m2 of skin exposed to the sun for 1.00 hh.…

A: Energy of photon = hcλ  = 6.63×10-34×3×108320×10-9 = 6.216×10-19 J/photon   Area of the skin = 0.43…

Q: Compare the energy output of a black-body radiator at two different wavelengths by calculating the…

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Q: A diffraction experiment requires the use of electrons of wavelength 550 pm. Calculate the speed of…

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Q: Electromagnetic radiation travels through vacuum at a speed of O 10,000 3.00 x 108 O 125 O 186,000 O…

A: speed of light in vacuum is 3.00 × 108 m/sspeed of Electromagnetic radiation is 3.00 × 108 m/s

Q: What is the energy of 3.25 x 10–3 moles of 2.02 nm X-ray photons?

A:

Q: Assuming that sunlight produces 3.066x1022 UV Photons/m2s and that the skin absorbs one-half of…

A: Energy from sun comes in the form of bundles of energy. These bundles of energy are called photons.…

Q: How many photons of wavelength 350 nm are needed to heat 1.0 gram of water 1 K.

A: E= hxc/ג E= m x Sx t Mass of water =1g S=4.186J T=1K Therefore, Energy required is  =…

Q: calculate frequency and energy of photons of a radiations having wavelength 6000 armstrong.

A: The frequency of light of given wavelength is calculated as,

Q: The rays of the Sun that cause tanning and burning are in theultraviolet portion of the…

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Q: If you have a 100 Watt lamp, about how many photons are emitted per second, assuming the majority of…

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Q: One reason carbon monoxide (CO) is toxic is that it binds tothe blood protein hemoglobin more…

A: Given: Radiation = 1953 cm-1 As units are the reciprocal of the wavelength in centimeters.  So, its…

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…

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.