The intensity of the radiation from an object is found to be a maximum at 2000 cm−1. Assuming that the object is a black body, calculate its temperature.

Q: local FM radio station broadcasts at an energy of 6.61×10-29 kJ/photon. Calculate the frequency at…

A: We are given the energy of a photon = 6.61x10-29 kJ/photon We are asked to find the frequency (ν),…

Q: As space exploration increases, means of communication with humans and probes on other planets are…

A: a) The radio wave travels at the speed of light, it means that the speed of radio wave is 3×108 m/s.…

Q: Calculate the energy per photon of blue light of frequency 6.40 x 1014 Hz.

A: Given :- frequency of blue light = 6.40 × 1014 Hz  To calculate :- Energy

Q: Calculate the wavelength in hydrogen spectrum for the emission that results from the transition n =…

A: The wavelength in hydrogen spectrum can be expressed as follows-

Q: A local AM radio station broadcasts at an energy of 5.65×10-31 kJ/photon. Calculate the frequency at…

A: Since the relationship between energy and frequency is given by  E = hf  where E = energy in J =…

Q: Frequency: 5.98 × 1014 Hz Wavelength: 500 nm Photon Energy: 3.97 × 10-19 J 00t Distance (nm) 009 008…

A:

Q: The power of a red laser (λ= 630 nm) is 3.00 watts (abbreviated W, where 1 W= 1 J/s). How many…

A: Interpretation-  The power of a red laser ( λ = 630 nm ) is 3.00 watt where 1 W= 1 J/s . Then here…

Q: Absorption of what type of electromagnetic radiation results in transitions among allowed…

A: Given question is Absorption of what type of electromagnetic radiation results in transitions among…

Q: For each of the following transitions, give the sign of ΔE andindicate whether a photon is emitted…

A: Given: (a)  n= 3 to n = 1 (b) n = 2 to n = 4

Q: A local FM radio station broadcasts at a frequency of 91.8 MHz. Calculate the energy of the…

A: To calculate the energy , we would use the formula : E = n h v  where, n = number of photons h =…

Q: What is an Eletromagnetic Radiation?

A: Electromagnetic radiation travels like waves.

Q: (a) Ozone formation in the upper atmosphere starts when oxygen molecules absorb UV radiation of…

A: (a) The frequency and energy of least energetic of photons has to be calculated. The given…

Q: Define the term Frequency Factor?

A: Frequency Factor can be defined as follows,

Q: Calculate the wavelength, in m, of electromagnetic radiation having a frequency of 1070 kHz.

A: The wavelength of electromagnetic radiation is mathematically expressed as: Where: , and represent…

Q: calculate the total amount of energy on units of kj for 0.380 moles of 550 nm photons

A: The energy corresponding to 'N' photons is calculated as: E =Nhcλ where N is the number of photons,…

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

A: SOLUTION: Step 1: The electromagnetic waves of different frequency are called by different names…

Q: 9. The work function of a collected metal is 8.0 x 10-10 J. Should a radiation of 150 nm hit the…

A:

Q: If the amount of energy of incident radiation is less than the work function of metal, no photo…

A: The work function of a metal is the minimum energy that is required to exit an electron from the…

Q: The energy contained in one mole of 512.5 nm photons is?

A:

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

A:

Q: What is the frequency of the radiation? X = 5.25 x 10-7 m %3D [? ]x 10*1 s-1 Coefficient (green)…

A: Given: λ=5.25×10-7m To find: the frequency of the radiation.

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

A: The electromagnetic spectrum is classified according to different ranges of wavelengths. The…

Q: The power of a red laser (2 = 630 nm) is 2.25 watts (abbreviated W, where 1 W = 1 J/s). How many…

A: We have to calculate the number of photons.

Q: A local AM radio station broadcasts at an energy of 4.19×10-31 kJ/photon. Calculate the frequency…

A: Data given: Energy of the photon, E = 4.19×10−31 kJ = 4.19×10−31×103 J= 4.19×10−28 J (1 kJ = 103 J)…

Q: What is the total amount of energy (in units of kJ) for 1.446 moles of 666.02 nm wavelength photons?

A: Recall the relationship between a

Q: Calculate the total amount of energy in units of kJ for 0.345 moles of 567 nm photons.

A: Given - - > Wavelength, λ = 567 nm = 5.67 x 10-7 m Number of moles, n= 0.345 mol speed, c = 3 x…

Q: The 21-centimeter radiation is used to map the galaxy by detecting what substance?   a. neutral…

A: The hydrogen line, 21-centimeter line, or H I line is the electromagnetic radiation spectral line…

Q: Is there enough energy released from a hydrogen atom during an n = 6 to n = 1 electron transition to…

A: 1/λ = 1.097x107m-1 (1/nf2 - 1ni2) λ = wavelength = ? nf = final energy level = 1 ni = initial…

Q: The power of a red laser (λ = 630 nm) is 4.00 watts (abbreviated W, where 1 W = 1 J/s). How many…

A: We have to predict the number of photons.

Q: What is the frequency of the radiation? \ = 1.238 x 10-2 m %3D [?]x 101

A: Frequency is inversely proportional to the wavelength

Q: what is the energy of radiation whose frequency is 1.9 x 1015sec-1 (Hz)?

A: The energy formula h is Planck’s constant is the frequency, c is the speed of light, and λ is the…

Q: With the following information: Solar radiation reaching noon 850 W/m2, surface albedo 0.20,…

A:

Q: X-rays of frequency 1.53 x 1016 Hz cause the emission of electrons from a material with a maximum…

A:

Q: The flux of solar energy reaching the Earth’s surface is approximately 7J/cm2. Assume that all of…

A: The maximum efficiency is 35%. Surface area of leaf is 10 cm2  Amount of solar energy is 7J/cm2  The…

Q: Calculate the broadcast wavelength of the radio station 99.10 FM.

A: Ephoton = hv   h is the plank's constant  v is the frequency of light  v = speed of light/wavelength…

Q: The power of a red laser (λ = 630 nm) is 3.25 watts (abbreviated W, where 1 W = 1 J/s). How many…

A:

Q: What is the threshold frequency of cesium?

A:

Q: determine The energy of a radio station with a frequency of 107.1 MHz. ( 7.10x10^26 J )

A: The formula to calculation of the energy of radio station with frequency as follows:

Q: A radiation has the frequency of 1.88 x1015 Hz , calculate  energy of photon.

A:

Q: what is the wavelength of electron accelerated by 1000 volts?

A: The kinetic energy of the electron would be

Q: When light of sufficient high frequency is used to illuminate a typical metal surface, a…

A: The wavelength will be 72.7 nanometer.

Q: What is the wavelength, in cm, for the frequency 156.8 MHz?

A: Given  Frequency = 156.8 MHz  Wavelength   in cm  = ?

Q: Calculate the wavelength of the 6000Hz frequency

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

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: What is the frequency (in Hz) of a photon of light with energy of 1.5 * 10^‐21 ?

A: The frequency of a photon is defined as “the number of wavelength travelled per second”. The SI unit…

Q: Over a period of 3.0 hours, a detector sensitive to 450 nm photons collects a total of 2.3 x 10 -2 J…

A:

Q: Enter your answer in the provided box. The UV light that is responsible for tanning the skin falls…

A: Given UV light region responsible for tanning the skin = 320-400 nmAverage of wavelength = 320 +…

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.