1. There are various ways that the desired wavelength(s) to be used are selected in UV-visible spectrophotometer. List at least three ways this can be accomplished and state the advantages and disadvantages of each. please add sources if there is
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Q: 3 all zain 1Q O 24 May 2021 a... -> H.W: If a (10 mJ) laser pointer creates a spot that is 5 mm in…
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- What is the purpose of a transducer in an absorption spectrophotometer? А To filter out the desired wavelength of light To provide a source of radiation To convert light energy into electrical energy To serve as a container for the sampleAfter you calibrate the SpectroVis Plus spectrometer, you must a. run a full spectrum by selecting Sensors/Calibrate/Full Spectrum. O b. change the mode by selecting Sensors/Time-Based. Oc. collect a full spectrum of the sample to determine the wavelength of maximum absorbance. O d. change the mode by selecting Sensors/Data Collection.1:.0 O %).. N O a all zain 1Q O 24 May 2021 a... H.W: If a (10 mJ) laser pointer creates a spot that is 5 mm in diameter in a 30 second, determine the radiation pressure on a screen that absorbs 40% of the light that strikes it.
- Answer the following A. A comet has just passed the Earth and its peak emission is observed at 15000 nm. Determine in which region of the electromagnetic spectrum (e.g. X-ray, infrared, visible, ultraviolet, ...) the peak emission wavelength resides. What is the temperature of the comet? B. Within the Solar System, a convenient unit of measurement is the Earth-Sun distance, called an astronomical unit (AU). For bigger distances, we use the light year (LY), the distance that light travels in one year. We can expand our lingo to include other measures of distance, for example, light days, light minutes, and light hours. Starting with the values you can look up in the Appendices for the speed of light and the astronomical unit, calculate how many “light minutes” there are in 1 AU. C. What is the observable universe? How big is it?Solve both. Otherwise leave it for other tutor. Calculate the wavelength λ1 for gamma rays of frequency f1 = 6.30×10^21 Hz. Calculate the wavelength λ2 for visible light of frequency f2 = 5.75×1014 Hz .B- What are the wavelengths that Ti-Sapphire lasers provide? Why this type of materials provides so many wavelengths?
- Q1.A) If an 8-bit SAR ADC is used to digitize 8V full scale signal, what will be the digital o/p for an analog i/p of 5.76 V (perform complete analysis)? Q1.B) Explain why active filters are designed as biquadratic sections ?Q1- On TURKSAT 4B satellite, we have deployable reflector antennas on each side. One of the antenna diameter is 1.5 meters. Assume that the efficiency is 70%. Downlink frequency of the signal is 11.5 GHz. a) Calculate the gain of this antenna in dBi. b) How about the beamwidth in degrees (HPBW)? c) What is the far-field condition of this antenna? d) How can we measure the gain of this antenna on Earth? Suggest something. Q2 = A magnetic field strength of 10 µA/m is required at a point on 0 = n/2, 5 km from an antenna in air. Neglecting ohmic loss, how much power must the antenna transmit if it is (a) A Hertzian dipole of length 2/25? (b) A half-wave dipole? (c) A quarter-wave monopole? (d) A 10-turn loop antenna of radius p, = 1/20? 4.A seismic survey is set-up with a source in a borehole, 100m below the surface,and an array of geophones on the surface. There is an interface at 200m. The toplayer has velocity 1000m/s and the lower layer has velocity 2000m/s. Which ofthe following characteristics on a T-X plot will remain the same if the source wasnow moved to the surface?a. Slope of the refracted arrivalsb. Intercept times of the refracted arrivalsc. Arrival times of the direct rayd. Arrival times of the reflections
- Beam Parameters. The light emitted from a Nd:YAG laser at a wavelength of 1.06 μm is a Gaussian beam of 1-W optical power and beam divergence 200 = 1 mrad. Determine the beam waist radius, the depth of focus, the maximum intensity, and the intensity on the beam axis at a distance z = 100 cm from the beam waist.When x - ray incident to the layer of Aluminum , and the transmitted intensity was 10 % from the original incident ray when the thickness of Aluminum was 2 cm , if the density of Aluminum is (2.7gm/cm .^3) , then the Half: Value Layer equal to 1.626 cm. O 0.601 cm . O 3.108 cm. O Please I need an answer within 30 minutes1- Calculate the maximum range of radar which operate at a frequency of 15 GHz, peak pulse power (transmitted power) of 1 MW. If the antenna effective area is 5 m2(effective aperture) and target cross section is 30 m2. Note that system losses is12 dB, SNR is 13 dB, system temperature 620 k, and the bandwidth is 4 MHz. Show the result in Matlab.