Ultraviolet Radiation. There are two categories of ultraviolet light. Ultraviolet A (UVA) has a wavelength ranging from 320 nm to 400 nm. It is necessary for the production of vitamin D. UVB, with a wavelength in vacuum between 280 nm and 320 nm, is more dangerous because it is much more likely to cause skin cancer. (a) Find the frequency ranges of UVA and UVB. (b) What are the ranges of the wave numbers for UVA and UVB?

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A: To be given,wavelength:λ1= 1 nmλ2= 400 nm

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A: Frequency,V=1470×103 HzWavelength,λ=?we know,Vλ=C=3×108 m/sWhere C is the speed of light in vaccum

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

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Q: 6. A microwave oven operates at 11.4GHZ with an intensity inside the oven of 1340 W/m2. (a) What is…

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A: Given  Wavelength = L= 1.0*10^(-7) m  Freq = f = 3.0*10^(15) Hz  Velocity =v =????

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A: Given Data: The intensity of the radiation  I=3.313 kW/m2 =3313 W/m2. Wavelength of radiation λ=1.5…

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A: This curve is spectral irradiance on y axis and Photon wavelength on x axis. It is known as Black…

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

A:

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

A: From Planck’s law, the energy can be calculated as, E=hν=6.626×10-34 J·s6.60×1017 s=4.37×10-16…

Q: An infrared thermometer (or pyrometer) detects radiation emitted from surfaces to measure…

A: The solution is given below

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Q: (c) What is the wavelength (in m) of a photon with an energy of 1.13 eV? 1.76*10**-6 m

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

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Q: A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of A = 169.8 nm.…

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Q: Consider six proposed properties of electromagnetic radiation: wave speeds of 3.00 x 10* km/s and…

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A: From the concept of electromagnetic spectrum

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de Broglie Equation

The sketch of matter waves is drawn below: