A heat lamp produces 22.5 watts of power at a wavelength of 7.0 μm . How many photons are emitted per second? (1 W=1 J/s.)   Express your answer to three significant figures.

Q: An x-ray has a wavelength of 2.35 Å. Calculate the energy (in J) of one photon of this radiation.…

A: From Planck's  quantum equation

Q: The energy of a photon is 4.12 x 10 4 J. What is its wavelength (in nanometers)? Enter your answer…

A: Given : Energy of photon = 4.12 x 10-20 J

Q: laser technician measures the wavelength of light from a new semiconductor laser. The wavelength is…

A: The question is based on the concept of unit conversions. we have been given wavelength in metres.…

Q: a frequency of 30 Hz .  What is the wavelength of this radiation in meters?

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

Q: Of the following listed four types of electromagnetic radiation, which one has the lowest…

A:

Q: Mercury emits a number of discrete wavelengths of visible light when an electric current passes…

A:

Q: A particular form of electromagnetic radiation has a frequency of 7.06 × 105 Hz. (a) What is the…

A: wavelength of electromagnetic radiation  (λ) = c/f The energy of the electromagnetic radiation…

Q: A 100-watt lightbulb radiates energy at a rate of 100 J/s. (The watt, a unit of power, or energy…

A: The power of the lightbulb is = 100 watts (100 J/s) The wavelength of the emitted light is = 515 nm…

Q: viii) Which one of the following radiations has the longest wavelength? a. x-rays b. ultraviolet c.…

A: Higher the energy of radiation Lower will be the wavelength.

Q: Consider a cellphone operating at the radio frequency of 2.99 x 10s!. What is the wavelength of the…

A:

Q: Be sure to answer all parts. An x-ray has a wavelength of 3.70 Å. Calculate the energy (in J) of one…

A: We have the energy of a photon, E = hv v = c/λ So, E = hc/λ

Q: Water is exposed to infrared radiation of wavelength 2.8×10−4 cm . Assume that all the radiation is…

A: Given data, wavelength (λ)=2.8×10-4cmMass of water=2.1g∆T=2.3KCwater=4.184J/g.K

Q: What are the basic SI units for (a) the wavelength of light,(b) the frequency of light, (c) the…

A: Wavelength of light- Wavelength of light is distance from one trough to another trough or one…

Q: A local AM radio station broadcasts at a frequency of 791 kHz. Calculate the wavelength at which it…

A:

Q: 11. What is the wavelength of light that has a frequency of 14 7.89 ¥ 10 sec? Express the answer in…

A: given ;- frequency of light = 7.89 × 1014 sec-1  to calculate :- wavelength of light (in both cm and…

Q: A local AM radio station broadcasts at a frequency of 558 kHz. Calculate the wavelength at which it…

A:

Q: 2) Based on your knowledge of the Electromagnetic Spectrum, what are the differences between…

A: Electrons can behave as a particle as well as wave. The dual nature of electron was explained by De…

Q: A sodium flame has a characteristic yellow color due to emissions of wavelength 566 nm. What is the…

A: Given that  wavelength λ=566 nm =566×10-9m Energy of the photon can be find using the relation,…

Q: If the frequency of a photon is 6.61x10^15 HZ, what is its wavelength in nanometers?

A: Given Frequency of photon = 6.61 × 1015 Hz Conversion used 10-9 m = 1nm

Q: If 1.88 × 10¹⁸ photon falls on the cm² area of ​​the radiation detector exposed to light from a…

A:

Q: The wavelength is 1.6210−^14m. What is the wavelength in femtometers?

A: Given :- wavelength = 1.62 × 10-14 m  To calculate :- wavelength in femtometers.  1 femtometer =…

Q: 1. A typical microwave oven produces 2.50 x 10* MHz light. What is the wavelength (in cm) of this…

A:

Q: A local AM radio station broadcasts at a frequency of 676 kHz. Calculate the wavelength at which it…

A:

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A: Dear student I have given answer to your question in the image format.

Q: A local AM radio station broadcasts at a frequency of 784 kHz. Calculate the wavelength at which it…

A:

Q: Water is exposed to infrared radiation with a wavelength of 3.0×10-4 cm . Assume that all the…

A:

Q: Humans have three types of cone cells in their eyes, which are responsible for color vision. Each…

A: Given that -  Wavelength of particular cone cell absorbed = 513 nm    Then, from following formula -…

Q: Calculate the frequency of each of the following wavelengths of electromagnetic radiation. 488.0 nm…

A: The answer to the following questions are given as:

Q: What is the wavelength, in nanometers, of light with a frequency of 4.54 x1015 Hz?

A:

Q: Mercury emits a number of discrete wavelengths of visible light when an electric current passes…

A: According to Quantum mechanics, the light wave that hits on the surface of metals are not continues…

Q: The Incredible Hulk was created by high-powered gamma radiation. If the gamma rays had a wavelength…

A:

Q: Green light has a frequency of about 6.00 x 1014 s-1. What is the energy of a photon of green light?…

A: Green light has a frequency of about 6.00 x 1014 s-1. The energy of a photon of green light is to be…

Q: Humans have three types of cone cells in their eyes, which are responsible for color vision. Each…

A: The number of times a wave occurred per unit time is known as frequency.

Q: Calculate the frequency of each of the following wavelengths of electromagnetic radiation. 12.24…

A: The wavelength of the electromagnetic radiation is = 12.24 cm The frequency of the radiation =?

Q: Visible light falls into wavelength ranges of 400-700 nm, for which 1 m = 1 x 10° nm. The energy and…

A: The wavelength of the light in meters can be calculated as follows:

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: Which of the following regions of the electromagnetic spectrum has the highest frequency а. X-ray b.…

A: The electromagnetic spectrum contains rder of rays which are arranged in increasing order of their…

Q: A local FM radio station broadcasts at a frequency of 97.9 MHz. Calculate the wavelength at which it…

A: Given, Frequency= 97.9 MHz= 97.9×10^6 s^-1

Q: How long(in hours) will it take for light that travels at 3.00x10^8m/s to cover the distance from…

A:

Q: the wavelength of light that has a frequency of 7.89 x 10^14 sec^-1?

A:

Q: Amateur radio operators in the United States can transmit on several bands. One of those bands…

A: Frequency is related to wavelength as,

Q: Calculate the frequency of each of the following wavelengths of electromagnetic radiation. A) 632.8…

A: Convert the unit of wavelength:

Q: What is the wavelength, in nanometers, of light with a frequency of 4.54 x1015 Hz?

A:

Q: A radiowave has a frequency of 94.9 MHz.  Calculate the wavelength of this frequency, in meters.…

A: Ans Given A radiowave has a frequency of 94.9 MHz. =  94.9*106Hz. = 94.9*106(Sec-1) Now we know that…

Q: Be sure to answer all parts. The energy of a photon is 5.46 × 10 10 J. What is its wavelength (in…

A: Applying formula E=hc/lemda

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: FM-95, an FM radio station, broadcasts at a frequency of 9.51 x 107 s-1(95.1 MHz). What is the…

A: Since we known that -  Velocity of light / wavelenth = frequency using this concept we will solve…

Q: Which of the following regions of the electromagnetic spectrum has the highest wavelength? а. X-ray…

A: The electromagnetic region consists of several regions. These regions are divided on the basis of…

Q: length and frequency of... 0/3 A VHF television station assigned to channel 23 transmits its signal…

A: Given that -  Frequency = 524 MHz = 524×106 Hz = 524×106 s-1    Now, from following formula -  c = v…

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.