At a given point in its orbit, the moon is 2.4 x 105 miles from earth.  How long does it take light from a source on earth to reach a reflector on the moon and then return to earth?  (speed of light is 3.0 x 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: certain shade of blue has a frequency of 7.30×1014 Hz. What is the energy of exactly one photon of…

A: Frequency ,v = 7.30×1014 Hz Planck's constant, h=6.626×10-34 J⋅s.

Q: In your own words, explain the relationship of wavelength and frequency.

A: Using Einstein's  energy relation we can derive the relation between frequency and wavelength

Q: For your WiFi with frequency of 900 MHz, what wavelength does it have?   a. 3 x 105 m   b. 3 x 1017…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: An ampule of napthalene in hexane contains 5.00x10^-4 mol napthalene. The napthalene is excited with…

A: Given: 5.00 × 10-4 mol naphthalene in an ampule wavelength = 349 nm Energy emitted = 15.5 J…

Q: What is the wavelength of microwave radiation whose frequency is 1.395 x 10 10/s?

A: Given Data:  microwave radiation Frequency = fmw=1.395 x 10 10/s?  Wavelength= ?

Q: 12. The energy required to excite an atom from level n=1 to level n=2 is 1.43 x 10-17 J. Calculate…

A:

Q: Calculate the energy of 1.215 moles of light with a wavelength of 188.334 nm. 6.02 x 1023 things =…

A: Solution -

Q: What is the energy (in kJ) of 3.00 moles of photons of visible light, that all have a wavelength of…

A: Given mole = 3

Q: A laser pointer used in a lecture hall emits light at 445 nmnm. What is the frequency of this…

A: We have wavelength of light as 445 nm, we have to calculate the frequency of this light in s-1  upto…

Q: The wavelength and frequency of an electromagnetic wave are related to each other through the…

A: Given: Wavelength of electromagnetic wave =4.32×10-7 m

Q: What is the energy of a mole of photons that have a wavelength of 647 nm? (h = 6.626 × 10⁻³⁴ J • s…

A:

Q: A blu ray player uses a 40mW (=0.030J/s) laser diode that emits 4.04 x 10^20 photons during a 110…

A: Power = 0.030 J/s  Time = 110 minute = 110 x 60 = 6600 sec  Energy (E) = P x t = 0.030 x 6600 = 198…

Q: When light with a wavelength of 298 nm strikes the surface of tin metal. What is the photon energy…

A:

Q: What is the frequency of the light? Express your answer to two significant figures and include the…

A: Given, Wavelength of light = 2000 nm  Frequency of light = ? 1nm = 10-9 m

Q: Consider light with a wavelength of 5.41 × 10⁻¹⁰ m. What is the frequency (in Hz) of this type of…

A:

Q: On February 18, the news Mars rover landed in the Herezo Crater. It communicates with Earth via…

A: Microwave is an electromagnetic wave which travel with a speed of 3.8 × 108 m/s.

Q: 1.1 What is the relationship between the wavelength and the frequency of radiant energy? (b) Ozone…

A: To find: The relationship between the wavelength and the frequency of the radiant energy The region…

Q: Calculate the energy, in joules, of a photon of ultraviolet light with a frequency of 6.8 * 10^15…

A: E = hϑ where, E = energy (J) h = planck's constant…

Q: What is the energy of a photon that has a wavelength corresponding to the peak in the figure?…

A: The expression for the energy of photon is shown below:E = hcλ where; E =energy of photon h =…

Q: The fluorescent bulb doesn’t just have one kind of element inside it. It has a whole range of…

A: Flouroscent bulb:- Flouroscent bulb contains mercury ,some amount of inert gas(Argon) and phosphor…

Q: The photoelectric work function for a certain metal is 221.8 kJ/mol. What is the maximum wavelength…

A: Work function Problem  solution provided in step -2  Max Wavelength means that it can have Energy…

Q: Microwave light has a wavelength of 1.0 x 10-2 m. Calculate the number of photons required to heat…

A: Given, Mass = 82.0g Microwave light has a wavelength of 1.0 x 10-2 m.

Q: What is the wavelength of light in centimeters having a frequency of 1.5 x 10^18s^-1

A: Frequency of light given = 1.5×1018 s-1 Speed of light, c = 3.0×108 m/sec Now, convert unit of speed…

Q: A beam produces light at 5.27 * 10^-7 meters. How many photons of light from this beam would be…

A:

Q: Green plants absorb sunlight to power photosynthesis, the chemical synthesis of food from water and…

A: The frequency of the light can be calculated as follows: The wavelength of light = 430 nm =

Q: greater vel ocity? What is the velocity of the electrons? 4. Titanium ( 6.94 X 1019 J) 10 and…

A: As per our honor code we are authorized only one question at once. We’ll answer the first question…

Q: A local FM radio station broadcasts at a frequency of 90.7 MHz. Calculate the wavelength at which it…

A: Wavelength and frequency are inversely proportional The mathematical relation is  λ = cv λ =…

Q: 9.) The absorption peaks of chlorophyll a are at 665 nm and 465 nm. Assume that a plant can convert…

A: Given: The wavelength of each photon is 665 nm and 465 nm.

Q: Given the relationship between wavelength, frequency and the speed of light, calculate the frequncy…

A: According to the Plank quantum theory the energy of the photon of light is given by: Where E =…

Q: 10. What is the frequency of light with a wavelength of 598 nm?ert lo rar

A:

Q: The cone cells of the human eye are sensitive to three wavelength ranges, which the eye interprets…

A:

Q: Calculate the wavelength of a baseball ( m = 155 g) moving at 25.3 m/s.     7.60 × 10-36 m…

A:

Q: Consider light with a wavelength of 1.25 x 10-1° m. What is the frequency (in Hz) of this type of…

A: The question is based on the concept of dimensional analysis. we have been given wavelength of…

Q: Match the type of electromagnetic radiation with its frequency. gamma rays v [ Choose ] 10E15 Hz…

A:

Q: 44) Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency…

A: Energy , E =h v , where v is frequency of light. The capacity to do work is known as energy.

Q: t takes  338./kJmol  to break an carbon-chlorine single bond. Calculate the maximum wavelength of…

A: To solve this problem first we have to calculate the energy required to break one single bond…

Q: What is the frequency of a photon if its wavelength is 2.15 x 104 angstroms? O 1.26 X 1013s-1 O 1.40…

A: Given ;  Wavelength ( λ) = 2.15 × 104 angstroms  = ( 2.15 × 104 × 10-10 ) m = 2.15 × 10-6 m…

Q: A certain shade of blue has a frequency of 7.28×1014 Hz.7.28×1014 Hz. What is the energy of exactly…

A: For a wave with frequency (v) has energy (E) can be mathematically expressed using Planck…

Q: The blue color of the sky results from the scattering of sunlight by air molecules. The blue light…

A:

Q: Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.…

A:

Q: The sound wave travels in CO2 at 1.006kHz. We measure the average wavelength to be 23.63cm. What is…

A:

Q: The light emitted from one of the following electronic transitions (n=4 to n = 3 or n = 3 to n = 2)…

A: Energy emitted in the transition from n=3 to n=2 is more than energy emitted in the transition from…

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: The ultraviolet spectrum can be divided into three regions based on wavelength: UV-A (315–400 nm),…

A: Ultraviolet radiations are considered particularly harmful to the Environment. They are classified…

Q: A local FM radio station broadcasts at a frequency of 92.5 MHz. Calculate the wavelength at which…

A: Given: FM radio station broadcasts at a frequency of 92.5 MHz 1 MHz = 106 cycles/sec Thus, 92.5 MHz…

Q: It requires 6.89 x 10^-19 J of energy of electromagnetic radiation to remove an eletron from a…

A: Given Energy of electromagnetic radiation as 6.89*10-19 J

Q: A 100. W lamp emits red light of wavelength 680 nm. How many photons can the lamp generate in 26…

A: This problem this problem is based on Planck's Quantum theory E = hλc where the symbols have their…

Q: The speed of sound in dry air at 20 °C is 343 m/s and the lowestfrequency sound wave that the human…

A: (a) Wavelength : λ = vf = 34320  =  17.15 m   (b)  f = cλ = 3 x 10817.15 = 1.75 x 107 Hz

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.