The distance to the North Star, Polaris, is approximately 6.44 × 1018 m. (a) If Polaris were to burn out today, how many years from now would we see it disappear? (b) What time interval is required for sunlight to reach the Earth?(c) What time interval is required for a microwave signal to travel from the Earth to the Moon and back?

Q: A laser used in orthopedic spine surgery produces radiation with a wavelength of 2.10 mm. Calculate…

A: For any electromagnetic radiation, wavelength and frequency are related as,  Frequency = speed of…

Q: While an FM radio station broadcasts at a frequency of 94.7 MHz, an AM station broadcasts at a…

A:

Q: 1a) What is the wavelength of a photon of light (in nm) whose frequency is 3.74 x 10^14Hz? 1b)…

A:

Q: What is the wavelength of light with a frequency of 5.77 × 10 14 Hz?

A: Given ; The frequency of the light=5.77× 10 14 Hz or s-1 The speed of light=3×108m/s

Q: 1. What is the energy of a photon of 8.70 x 106 micrometers?

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Q: What is the wavelength of a photon having a frequency of 54.1 THz?

A: We can use the following equation:  (Frequency)(Wavelength) = speed of light in a vacuum Wavelength…

Q: What should be the speed of a beam of particles of mass 9.25×10-28 g in order to have a wavelength…

A: Given : Mass of particles = 9.25 X 10-28 g = 9.25 X 10-31 Kg                                (since 1…

Q: Differentiate between infrared radiation and microwave radiation?

A: Microwave and Infrared radiations both are the forms of electromagnetic radiation. The microwave…

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: Why do microwave ovens heat food but tend not to heat the dish the food is on?

A: Only some  molecules, such as water, can absorb microwaves.

Q: 5. If you take a rock that has a mass of exactly 2 pounds, and you throw it with a velocity of…

A:

Q: 2. What is the energy of a photon of X-ray radiation with a frequency of 7.49x1018 Hz?

A: •E = h.vE → energy.h → Plank,s constant.v → frequency.

Q: What is the energy of light with a wavelength of 5120 pm?

A: E= h C/λ GIVEN 152O pm

Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A: Given: Wavelength of photon = 45.5 nm Threshold energy = 8.76×10-19 J

Q: What is the wavelength, in nanometers, of light with a frequency of 1.24×1015 Hz?

A: We Know that speed of light wave is related to the frequency and wavelength of light. The relation…

Q: 6.32 Careful spectral analysis shows that the familiar yellowlight of sodium lamps (such as street…

A: Given:  λ1= 589 nm= 5.890×10-7mλ2=589.6 nm=5.896×10-7m To find: The difference in the energy between…

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: One of the radiographic devices in a dentist office emits an X-ray of wavelength 2.09 x 10-11 m.…

A: Frequency of light (v) = Speed of light / Wavelength                                   = 3 x 108 m…

Q: 4. A carbon-oxygen double bond in a certain organic molecule absorbs radiation at a frequency of…

A: The wavelength of the absorbed radiation is calculated as shown below where c, v, and λ are the…

Q: What is the wavelength of radio waves, in meters, from a FM radio station found at 96.4 on the FM…

A: Given, Frequency of radiowaves = 96.4 MHz Velocity of light =3 × 108 m/s

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

A: Ultraviolet radiation: Ultraviolet rays have an approximate wavelength range of 10-7 to 10-8 m.

Q: 7. Assume a microwave oven operates at a frequency of 5.98 x 1011s-1. a. What is the wavelength of…

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Q: 7.78 Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A…

A: We have 252 g of water, temperature rise from 20 to 98°C, wavelength of radiation as 1.55*10-2 m ,…

Q: What is the wavelength of the photons emitted by hydrogen atoms when they undergo n = 5 to n = 4…

A:

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

A: Electromagnetic radiations are classified based on their frequency ν or their wavelength λ = c/ ν.

Q: What is the wavelength of radiation that has a frequency of 2.10 x 1014 s-1?

A: To calculate wavelength of radiation, use the formula : f = c/λ λ=c/f         --------(1) where , c…

Q: What is the wavelength (in meters) of radiation whose energy is 3.40 x 1019    Joules/sec?

A: The relation between energy and wavelength of a radiation is given by Plank-Einstein’s relation,…

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

A:

Q: An electron in a hydrogen atom in the level n 5 undergoes a transition to level n 3. What is the…

A: We have to tell which option is correct by finding value of wavelength for transition from n = 5 to…

Q: What is the frequency of gamma ray radiation that has a wavelength of 11.4 pm?

A: Given :  Wavelength of gamma ray = 11.4 pm  To calculate :  Frequency of gamma ray

Q: Question attached

A: Photons are a type of elementary particle. It is the quantum of electromagnetic radiation including…

Q: What is the energy of an X-ray with a wavelength of 5.49 nm?

A:

Q: How long does it take, in minutes, for light to reach Mercury from the Sun, a distance of 5.56x10^7…

A: Given that,Distance between mercury from the sun = 5.56×107 KmChange unit from Km to m1 Km = 1000…

Q: The double bond between oxygen and carbon absorbs radiation that has a frequency of 6x10 13 s -1…

A:

Q: What is the wavelength (in nm) of the radiation used to excite the hydrogen atom from an n=2 state…

A: Given values are, n1=2 n2=4 Wavelength =? We know,  Rydberg's constant R =10 973 731.6 m-1

Q: What is the wavelength, in nanometers, of light with a frequency of 1.86×1015 Hz?

A: A  light with frequency of 1.86 × 1015 Hz  We know that,  c =  λ × v v = 1.86 × 1015 Hz  c = 3 × 108…

Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A: Given : Threshold energy of metal, T = 9.04 X 10-19 J And wavelength of light or photon used = 45.5…

Q: Calculate the energy in joules of one photon of radiation with the wavelength of 5.00 μm.

A:

Q: 12. What is the frequency of a 1.31 x 10-2' J wave? What is its wavelength?

A:

Q: 2. What is the frequency of an X-ray radiation of wavelength 9.41 x 10 1° m?

A:

Q: 2. A laser pointer used in the classroom emits light at 6550 A, at a power of 4.00 mW. (One watt is…

A: Energy of a photon =hcλWhere, h=Planck's constant                = 6.626×10-34 J.S             C =…

Q: The wavelength of a beam of light is 24 mm. What is the energy of one of its photons?

A: Using wavelength of the light beam provided, the energy of its photon can be calculated.

Q: What is the wavelength in (nm) of light with a frequency of 7.3 x 1014 Hz?

A: We have given that f = 7.3 × 1014Hz  f = frequency

Q: What is the wavelength of electromagnetic radiation, which corresponds to a frequency of 3.37 x 1013…

A:

Q: What is the wavelength of radiation in your microwave oven, whose frequency is 2.45 GHz?

A: Wavelength , λ = cν                           = 3 x 108 m/s2.45 x 106 s-1                          =…

Q: How to find the difference in energy between two level responsible for ultraviolet emission at…

A: The difference in energy between two levels (∆E) = h ν = h c/ λ where, ∆E = difference in energy…

Q: 9.966×106 m What is the wavelength of this radiation in miles?

A: 1 meter =0.000621 mile

Q: 6. What is the energy of a photon emitted by the transition from the n 4 to the ne = 3 of a hydrogen…

A:

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.