Lab 2-Visual Odometry

Incident beam A 8-- SQ + QT (3.19) drki sin 0 + dnki sin 0 %3D (3.20) 2dnki sin 0 %3D Н.W. Derive equation 3.20 (Bragg's Law) from equation 3.19 using trigonometry formulas.

interval Ax, what is the minimum number of samples that should be taken from any 1cm by 1cm square region on the Q2: If a continuous image Img (x,y) has the following frequency spectrum, what is the minimum sampling image, which can avoid aliasing? (cm:centimeter) re 10/cm- 10/cm

Which of the ff. is true about measuring light scattering inturbidimetry? a.) The amount of scattered light is measured at different angles from the sample holder.b.) The amount of scattered light is measured at 90-degree angle from the sample holder only.c.) The amount of scattered light is measured at 135-degree angle from the sample holder only.d.) The amount of scattered light is measured at 180-degree angle from the sample holder only.

Questiona Suppose a caltade Riag tube Speed two has 3cm/misdivecond scanning there क vertol ale displays, one Display Ruastel bath is and another disply 4Le displays is size af Same, bath CRT installed outline of each Sides be has locm X locm the and Same in .em तx Square. haning bcm, has to displayed. to bath the screens. Salid squnie Shape has to be displayed on both the displays, uhich disply wond be better

Hi can you solve the question plz? and make brief explanation, ( plz if you are gonna use handwrite pls make sure that is clearly readable)

Which of the following best explains the reason for taking three measurements at each light intensity instead of a single measurement? Select one or more: a. By taking three measurements at each light intensity, the investigator could identify any result that was not expected and repeat the measurements until the expected result was obtained. b. By taking three measurements at each light intensity, the investigator could eliminate any result that did not support the hypothesis. c. By taking three measurements at each light intensity, the investigator could be more confident in the accuracy of the measurements than if the measurement had been made only once.

What is the minimum data set that can be interpreted to yield two depths for a 1-interface model?a. One shot into one end of a line of geophones.b. Two shots; one at each end of the line.c. One shot at each end of the line and one at it’s centre.d. As many shots as it takes to get a refraction arrival at every geophone from both directions.

Figure 1: Schematical view of an absorber layer and back reflector NAir=1 R L Nabs=3 Oc Oc Lambertian scatterer The absorber layer shown in Figure 1 has a Lambertian scatterer at the back side. The absorber layer thickness is equal to D = 1 [µm]. The critical angle for light propagating from the absorber layer to air is indicated in the figure by Oc. A) What fraction of Ig is scattered into the critical angle Oc,Abs-Air ? Give a percentage %. For the angles smaller than the critical angle, light can escape the absorber layer. The area under which light can escape the absorber layer is called the escape cone, indicated by the red area in Figure 1. B) Calculate the fraction of angles under which light can escape the absorber layer. Give a percentage. (Hint: the fraction of angles is equal to the ratio of the area of the escape cone, to the surface area of the full hemisphere with radius L into which light can be emitted.)

Hi can you solve the question 10 plz? and make brief explanation, ( plz if you are gonna use handwrite pls make sure that is clearly readable)  question 10 options d and f

Michelson's interferometer played an important role in improving our understanding of light, and it has many practical uses today. For example, it may be used to measure distances precisely. Suppose the mirror labeled 1 in the figure below is movable. Light source Detector V E L S G 4 B If the laser light has a wavelength of 646.0 nm, how many fringes will pass across the detector if mirror 1 is moved just 1.520 mm? fringes nm If you can easily detect the passage of just one fringe, how accurately can you measure the displacement of the mirror?

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2. Spectral irradiance at the top of atmosphere is 1.2W m² nm¹¹, at the surface level is 0.7W m²² nm¹. Assuming there is no absorption at this wavelength and extinction is due to the scattering of molecules and aerosols, calculate transmittance, total optical thickness and optical thickness of aerosol layer if Rayleigh optical thickness is 0.08. What is the scattering cross-section of aerosols if the thickness of aerosol layer is 2.5 km. Sun zenith angle (from vertical) is 40 degrees.

State and explain three geometrical factors that can affect a x-ray image quality.