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- 1-)Examine the frequency spectrum graphs of the DSB(t) and VSB(t) signals. What are the differences? Please explain 2-)Observe the frequency components of the VSB signal. What is the bandwidth required for transmission of the VSB signal? Interpret the graphs you have obtained.1.A manufacturer produces a ferrite material with permeability = 750xpermiability of free space, permittivity = 5xpermittivity of free space, and conductivity = 5x10^(-6) S/m at 10 MHz. (a) Would you classify the material as lossless, lossy, or conducting? (b) Calculate wavelength (lamda) and phase constant (beta). (c) Determine the phase difference between two points separated by 2 m. (d) Find the intrinsic impedance.Does the absorption spectrum of the diatomic molecule HCl depend on the isotope of chlorine contained in the molecule? Explain your reasoning.
- Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. If the laser light wavelength is 1062 nmnm (Neodymium-YAG laser), and the pulse lasts for 35 picoseconds, how many wavelengths are found within the laser pulse? Assume that the wave travels in free space. Express your answer using two significant figures. How brief would the pulse need to be to fit only one wavelength? Express your answer to three significant figures and include the appropriate units.1. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature. a. If we observe a star's spectrum and find that the peak power density occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (Remember to include units)Incorrectb. If we observe a star’s spectrum and find that the peak power density occurs at the border between blue and ultraviolet light, what is the surface temperature of the star? (Remember to include units)Incorrect Submit QuestionQuestion 1explain structural scattering factors and atomic scattering in crystallography? (explain what the difference is in full)
- 1. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature. a. If we observe a star's spectrum and find that the peak power density occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (Remember to include units)b. If we observe a star’s spectrum and find that the peak power density occurs at the border between blue and ultraviolet light, what is the surface temperature of the star? (Remember to include units) Submit QuestionQuestion 11. What is the wavelength of a radio photon from an AM radio station that broadcasts at 1470 kilohertz? Express your answer to three significant figures and include the appropriate units. 2. What is the energy of a radio photon from the same station? Express your answer to three significant figures and include the appropriate units. For question 1 I am not sure how to solve it because the frequency is in kilohertz and I don't know how to convert it into something that I can use. For the speed of light in this question, would it be best to use 3 x 10^8 m/s or 3 x 10^5 km/s? For question 2 I have the formula to use, I'm just uncertain of how to use it.Q. (a)The signal retrieved in an optical fiber reduces at its output to one-tenth of its input power. What is the overall attenuation? What shall be the power at output in a fiber having loss3 db/km? (b)Explain why laser action cannot occur without population inversion between atomic levels?
- Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their charges are equal, what is the ratio of the proton's mass to the electron's? (Note that since the charge-to-mass ratios are given to only three-digit accuracy, your answer may differ from the accepted ratio in the fourth digit.)A radio station utilizes frequencies between commercial AM and FM. What is the frequency (in megahertz) of a 11.23 m wavelength channel?The next four questions use this description. Our Sun has a peak emission wavelength of about 500 nm and a radius of about 700,000 km. Your dark-adapted eye has a pupil diameter of about 7 mm and can detect light intensity down to about 1.5 x 10-11 W/m2. Assume the emissivity of the Sun is equal to 1. First, given these numbers, what is the surface temperature of the Sun in Kelvin to 3 significant digits? What is the power output of the Sun in moles of watts? (in other words, take the number of watts and divide it by Avogadro's number) Assuming that all of the Sun's power is given off as 500 nm photons*, how many photons are given off by the Sun every second? Report your answer to the nearest power of 10 (e.g. if you got 7 x 1024, give your answer as 25).