Consider the electromagnetic radiation inside a kiln, with a volume of 1 m3 and a temperature of 1500 K. What fraction of all the energy is in the visible portion of the spectrum, with wavelengths between 400 nm and 700 nm?

Q: The temperature of the surface of Pluto is about T(K) = 40 K (TC = -230 °C). %3! According to Wien's…

A: Frequency f is related to wavelength  λ is given by f=C/λ, where C= speed of light

Q: The power of a red laser (A = 630 nm) is 2.00 watts (abbreviated W, where 1 W = 1 J/s). How many…

A: Given that:-Wavelength of red laser light, λ=630 nmPower of the laser, P=2.0 WattsWe know thatNumber…

Q: A 100-WW incandescent light bulb has a cylindrical tungsten filament 35.0 cm long, 0.41 mmmm in…

A: The given problem is based on Stefan-Boltzmann law and wine's displacement law. Stefan laws stated…

Q: A LED household bulb is marked with a colour temperature of 3499 K, calculate the peak wavelength…

A: Given data: Color temperature of LED bulb is, T=3499 K.

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

A:

Q: A photon has a frequency of 9.00 x10-14 s-1. What is the wavelength?  Is the photon visible?

A:

Q: The total power radiated per unit area from a blackbody is 78.0 MW/m2. Find (a) the temperature of…

A: Power per unit area, P  = 78 MW/m2

Q: What is the frequency of a photon having energy 2.1 X 10-30 MJ?

A: E = 2.1 X 10-30+6 JFrequency, v = ?We know, Energy = hv, where h is the Planck’s ConstantTherefore,…

Q: A blackbody has a temperature of 5 K. At what wave-length is it brightest?

A: A black body is defined as an ideal body that can absorb all the radiations that fall on it.   The…

Q: Use the formula λ m T = 0.29 cm K to obtain the characteristic temperature ranges for different…

A:

Q: What is the frequency of an ultraviolet photon with wavelength 119 nm?

A: Given data The wavelength of the photon is given as λ=119 nm.

Q: Most remote controllers for AV equipment emit radiation with the wavelength profile shown in the…

A: The energy of the photon is given by E=hcλ

Q: The wavelength 10.0 mm is in the infrared region of the electromagnetic spectrum, whereas 600 nm is…

A: Wein's displacement law is, λmaxT=2.898×106 nm·K the temperature corresponds to 10.0 mm is,…

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

A: (a) Frequency of photon is (b) Wavelength is Note:Planck's constant is Speed of light is Find:Energy…

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: Given data, Wavelength λ=630 nm=630×109 m Power P=3 W=3 J/s

Q: What is the energy of a 858 nm photon in eV? (Note: Planck's constant for eV units is 4.135 1o 15…

A: Given: The wavelength of light is 858 nm.

Q: A mercury discharge tube emits two wavelengths: Green of wavelength 546.1 nm and Yellow of…

A: Wavelength of green light = 546.1 nm Wavelength of yellow light = 579.0 nm We require a comparison…

Q: rties of blackbody radiation had been ished. First, the total intensity I (the ge rate of radiation…

A:

Q: Approximately how many volts would absorbing red photons create in a solar cell?(remember that eV…

A: Given curve is known as Black body curve. A curve of spectral irradiance vs photon Energy.

Q: A black body radiates energy, the highest intensity radiation is at a wavelength of 164 nm. What is…

A:

Q: Calculate the wavelength (λ) for an X-ray photon having an energy E = 2.13 × 10–15 J.   Express…

A:

Q: The characteristic red color of blood is due to the very strong absorption of light at a wavelength…

A:

Q: Calculate the energy of a photon in O wavelength 5000 A.

A:

Q: An ultraviolet light source produces photons with 8.5 eV of energy. What is the wavelength of the…

A:

Q: Consider the following classes of electromagnetic radiation: ultra-violet, microwave, and infrared.…

A: Energy of photon = hv v = frequency of light

Q: An x-ray photon of energy 3.20 x 10-15 J has what wavelength?

A:

Q: To what temperature, in a) K    b) °C   c) °F, does this wavelength correspond?

A: a) The temperature corresponding to the maximum wavelength can be determined as, Here, λmax and T…

Q: An infrared satellite measures outgoing radiation that leaves Earth's surface through an atmospheric…

A: The expression for the spectral radiance is, Fλ=2πhc2λ5ehcλkT-1

Q: Ex. 51: Calculate the energy of a photon in O light of wavelength 5000 A.

A: To find-Energy of photon (E)=?Given-λ=5000 A0=5×10-7 mc=3×108 m/sh=6.63×10-34 Js

Q: (a) What is the wavelength (in nm) of radiation that has an energy content of 2.43 × 10³ kJ/mol x 10…

A:

Q: To what temperature must we heat an object until its peak thermal radiation is in the red region of…

A: The wavelength of the thermal radiation coming from an object can be calculated by assuming the…

Q: The carbon-dioxide laser is one of the most powerful lasers developed. The energy difference between…

A: Given:-            Energy difference between two laser levels = 0.117 eV → We know that atoms emit…

Q: Find the energy of the following. Express your answers in unit (a) a photon having a frequency of…

A: Given1eV=1.6×10-19 J

Q: QUESTION-4: Consider a laser beam with a diameter of 5 mm and carrying 60 W power. (Take c=3x10 m/s,…

A:

Q: Our sun's blackbody temperature is about 6000 K and its peak radiation occurs at a wavelength of…

A: We can apply Wien's law.

Q: The sun’s surface temperature is about 5800 K. (a) About how much electromagnetic wave energy does a…

A: Using black body radiation laws

Q: A spectral emission line is electromagnetic radiation that is emitted in a wavelength range narrow…

A: Write the expression for the energy in terms of wavelength,

Q: The red lasers used to read the barcodes of products at the grocery stores produce light with a…

A: Power is defined as work done per unit time. Thus, the energy radiated as light can be calculated by…

Q: Suppose a hot object radiates with the twice the intensity as the sun on earth, i.e. 2600W/m2. What…

A:

Q: What is the energy (in Joules, J) and color associated with 532-nm light? Energy and Type of EM…

A:

Q: Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV…

A: Given data: Frequency (f) = 4.20×1017 Hz1 eV = 1.60×10-19 JRequired:The energy of the photon in eV

Q: How many photons per second are emitted by the antenna of a microwave oven, if its power output is…

A:

Q: Assume that your body (with temperature of 310 K) can be approximated as a blackbody. What is the…

A:

Q: How much energy is carried by light with a wavelength of λ = 509 nm? Express your answer in eV…

A: Given data:  Wavelength (λ) = 509 nm = 509×10-9 m Required: The energy of light in eV