A radar pulse returns to the transmitter–receiver after a total travel time of 4.00 × 10-4 s. How far away is the object that reflected the wave?

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: Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where…

A: Given,Wavelength = 15.0 nm1 nm = 10-9 m

Q: What is the frequency observed with a wavelengh of (4.9x10^2) nm? Answer with 2 significant figures…

A: We have to find the frequency from wavelength।

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: What is the momentum of a photon of light with λ = 122 nm? (The velocity of a photon is the speed of…

A: Given data contains, The wavelength of light is 122 nm=1.22×10-7 m

Q: A rotating HI molecule may be treated as a stationary I atom around which an H atom circulates in a…

A: Moment of inertia (I) :  It is the multiplication of mass and square of radius . Th formula is…

Q: a laser pulse at 546 nm contains 4.25 mJ of energy. how many photons are in the laser pulse? use 3…

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

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: 1. What is the wavelength of a wave of velocity 10 m/s and frequency 200 Hz?

A: Given data, Velocity = 10 m/s Frequency = 200 Hz. To calculate the wavelength.

Q: Planck regarded his theory as applying only to material oscillators, such as those in a solid which…

A: Planck regarded his theory as applying only to material oscillators, such as those ina solid which…

Q: A nitrogen laser generates a pulse containing 10.1 mJ of energy at a wavelength of 339.6 nm. How…

A:

Q: An energy of a near infrared/microwave wavelength in aqueous media (η = 1.3332) is 2.91×10-19pJ .…

A: •Given:- Energy(E)=2.91×10-19 pJ •As 1 pJ= 10-12 J   than E=2.91×10-19×10-12 J…

Q: A UV-visible spectrophotometer can be used to determine the concentration of a substance that…

A: Given statement, A UV-visible spectrophotometer can be used to determine the concentration of a…

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

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

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: Wavelength (3) in m 10-11 Gemma rays 1020 10.9 10-7 Ultra violet Xrays 1018 400 nm 1016 T Which is…

A: Electromagnetic waves

Q: Calculate the wavelength in cm and the energy in joules associated with a signal at 220 MHz

A:

Q: (a) Calculate and compare the energy of a photon ofwavelength 3.3 μm with that of wavelength 0.154…

A: (a) Energy of photon with a wavelength of 3.3 micrometer is calculated as follows:

Q: What is the frequency of a photon resulting from the transition of n = 6 → n = 1 ? (give answer to 3…

A: Given information,Photon resulting from the transition of n = 6 to n = 1.Use Rydberg’s formula,

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: 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: What is the frequency of an IR photon with a wavelength of 1.2 X 10 -3 cm? c = 3.00 X 108 m/s. O a.…

A: • The values provided in the question are:-      i) Wavelength of an IR photon, λ = 1.2 × 10-3 cm =…

Q: if an fm radio wave signal has a wavelength of 3.55m what is its frequenxy?

A: Given information:Wavelength of radio wave signal = 3.55 m

Q: Determine the velocity of a medicine ball (m = 10.0 kg) with a wavelength of 1.33 × 10-35 m.

A:

Q: Suppose you were standing 225 m from a radio transmitter what is your distance from the transmitter…

A: The frequency of the light is inversely proportional to its wavelength.  ν=cλ c = speed of light  v…

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

A: The photon is composed of electromagnetic waves. They are electric fields travelling in space.…

Q: A laser used to read CDs emits red light of wavelength 700 nm. How many photons does it emit each…

A: The power and number of photons are related as, N=λP∆thcλ = wavelength  ∆t =  time interval  N = the…

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

A: In the given question we have to calculate the number of photons are absorbed by the water in the…

Q: A nanocrystallaine sample of CdSe emits an orange glow that has a wavelength of 570 nm. What is the…

A: Concept:  Light upon transmission have certain wavelength and the frequency. Using the wavelength or…

Q: A local FM radio station broadcasts at an energy of 5.98×10-29 kJ/photon. Calculate the frequency…

A: Given data,  Energy of photon = 5.98 × 10-29 KJ  1 MHz = 106 sec-1

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: What is the frequency in kHz of a photon with a wavelength of 50.7 nm?

A: Frequency is defined as the number of cycles per second. Wavelength is defined as the distance…

Q: Calculate the energy of a photon of electromagnetic radiation at the frequencie: 100.2 MHz (typical…

A: Given   Frequency: 100.2 MHz   we have to find the energy of the photon.

Q: What is the wavelength (in cm) of microwave radiation that has an energy content of 1.63 x 1024 j?…

A:

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: 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: 6. A radio station transmits at frequency 1350 kHz (kiloHertz; 1 Hz= 1 sec-l). Calculate the (a)…

A: (a)Energy of the radio waves can be determined using Planck’s equation as follows,

Q: What is the frequency (Hz) of electromagnetic radiation with wavelength 644nm (6.44 X 10^-7m)

A: Frequency ( v ) :-  The number of waves that passes through o point in one second is called…

Q: A laser pulse with wavelength 532 nm contains 3.85 mJ of energy. How many photons are in the laswer…

A:

Q: What is the total energy associated with a pulse of 5.00 × 1017 photons if each photon possessed a…

A: The number of photons is = 5.00 × 1017 The frequency of the photon is = 4.79x1014 Hz

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

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

Q: With some manipulation, the Rydberg equation can be rewritten in the formE=constant×(1nf2−1ni2)which…

A: Energy of transition can be calculated using Rydberg equation.

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 source of a wave is moving at 40 vibrations per second. What is the frequency of the wave it…

A: Given that : The source of a wave is moving at 40 vibrations per second.  We have to calculate the…

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: Counting the seconds between a flash of lightning and the clap of thunder is often used to estimate…

A: Given,The speed of sound is 330 m/sThe lightning strikes at a distance of 1.5 miles.Determination of…

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.