Sound waves, like light waves, can interfere with each other, giving maximum and minimum levels of sound. Suppose a listener standing directly between two loudspeakers hears the same tone being emitted from both. This listener observes that when one of the speakers ismoved 0.16 m farther away, the perceived intensity of thetone decreases from a maximum to a minimum.(a) Calculate the wavelength of the sound.(b) Calculate its frequency, using 343 m s-1as the speedof sound.

Q: What is the energy in j o u l e s of one photon of microwave radiation with a wavelength of 1 . 2 2…

A: According to Planck's hypothesis energy of a electromagnetic radiation is a form of quantized energy…

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

A:

Q: What is the kinetic energy (in J) of a neutron with a wavelength of 73.2 pm?

A: Wavelength = 73.2 pm = 73.2 x 10-12 m

Q: Give some uses of fluorescence in medical field?

A: Introduction: If a system absorbs radiant energy and then emits it partly or completely almost…

Q: Using the average speed of a gas, (8RT πMW)1/2, determine the average de Broglie wavelength for an…

A: The average velocity of He atom at 25oC and 500oC is; 25oC=298.15 K500oC=773.15 K1J=1 kgm2s-21…

Q: What is the wavelength in nm of a photon of light emitted from a hydrogen atom if an electron is…

A: The wavelength in nm of a photon of light emitted from a hydrogen atom if an electron is transferred…

Q: The average bond enthalpies of the C—F and C—Cl bondsare 485 kJ/mol and 328 kJ/mol, respectively.…

A: Energy required to break one C-F and one C-Cl bond can be calculated as follows-

Q: What is the difference between the excitation and emission spectrum?

A: The peaks of emission spectrum are lower than excitation peak.

Q: Can an argon atom undergo vibrational motion?

A: Argon is an inert gas. It is odorless as well as colorless gas.

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 the speed,  in m/s, of a wave with a wavelength of 456nm that has a frequency of 8.6…

A: Given,Wavelength, λ = 456 nmFrequency, ν = 8.6 × 1013 Hz = 8.6 × 1013 s-1   (1 Hz = 1 s-1)1 nm =…

Q: The speed of a photon (c) depends on its wavelength (A)

A: Since we know that wavelength and speed of photons are related with each other as…

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: An electron is accelerated through an electric potential toa kinetic energy of 2.15 x 10-15 J. What…

A: From the kinetic energy equation, velocity can be calculated.

Q: Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic…

A: Given : Wavelength = 28.3 μm

Q: The intensity of the radiation from an object is found to be a maximum at 2000 cm−1. Assuming that…

A:

Q: What is the frequency of a micro wave that has a wavelength of 1.5x10 m? Given: v =c= 3x10 m/s…

A: Wave velocity = frequency * wavelength Wavelength = 1.5*102 m Wave velocity = 3*108m/s Frequency =…

Q: Suppose that you designed a spacecraft to work by photon pressure. The sai l was a completely…

A:

Q: Moseley’s law states that if we plot the square root of the frequency of the Kα X-ray photons from…

A: As per Moseley's law, the frequency is given as: f=a(Z-b)

Q: A rotating diatomic molecule absorbs radiation and has moment of inertia, I, equal to 1.00 x 10-46…

A:

Q: 2. Arrange the following elactromagnetic radiation in order of their increasing energy. Radio,…

A: Electromagnetic radiation is the form of energy carrying electrical and magnetic waves

Q: What is the wavelength (A, in m) of a radio station operating at a frequency of 99.6MHZ? O 0.332m O…

A: To solve this problem we will use the formula   λ = c / v  Where,  λ = wavelength of radio waves…

Q: Use the de brogile relationship to determine the wavelength of an ozone (O3) molecule in the upper…

A:

Q: It can be shown that the maximum in the wavelength distribution for blackbody radiation can be…

A: Given: Temperature = 40 oC And the relationship between the λmax and temperature is given by,

Q: Illustrate the effects of Photo-electric?

A: Photoelectric effect, phenomenon in which electrically charged particles are released from or within…

Q: Sodium atoms can be made to emit yellow light at a wavelength of 589.0 nm if they are heated…

A:

Q: What is the wavelength of a UV photon with a frequency of 3.529 x 1o45 s1? Enter your answer in…

A:

Q: Suppose that a proton of an acidic hydrogen atom is confined to an acid that can be represented by a…

A: We have a proton of an acidic hydrogen atom which is confined to the acid that can be represented by…

Q: What is the wavelength in nm  of a photon emitted from an electron going from n=5 to n=3 in a…

A: The Rydberg equation for the calculation of the wavelength of a hydrogen atom when an excited…

Q: calculate the de Broglie wavelength of electrons accelerated through 50kV. (b) Is the relativistic…

A: Electrons have a rest mass, unlike photons, they have a de Broglie wavelength which is really…

Q: The ‘fine‑structure constant’, α, plays a special role in the structure of matter; its approximate…

A: de Brgalie gives a relationship between wavelength, and momentum. It can be given as: λ=hp Where λ…

Q: An electron is confined to a square well of length L. What would be the length of the box such that…

A: The energy of the electron in three dimensional box is written as, En=(nx2+ny2+nz2)h28meL2

Q: It can be shown that the maximum in the wavelength distribution for blackbody radiation can be…

A: Given: To find the smallest temperature that would have its value of λmax in the visible range.

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

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: A local AM radio station broadcasts at an energy of 5.19x1031 kJ/photon. Calculate the frequency at…

A:

Q: The C-H bond in ethanol vibrates at a frequency of 3000 cm ¹. What frequency (s 1) of light is…

A: Light is required to change the vibrational quantum from v=0 to v=1,  that has same energy as the…

Q: In general, how do IR radiations compare in energetic magnitude with those of UV, X-rays and…

A:

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: 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: The electronic spectrum of the molecule butadiene, H2C=CH–CH=CH2, can be approximated using the…

A: The energy value and ∆E for a particle in a 1D box are as:

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.