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Which of the following factors affect the specific rotation of an optically active substance?
Question 1 options:
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Length of the sample tube |
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Concentration of the substance |
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Temperature |
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Wavelength of the light |
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All of these |
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- The field of view (FOV) is the entire circular image we see when looking into the eyepiece. The diameter of the FOV gets smaller as we increase magnification. It can be measured by using a stage micrometer like a ruler, measuring from edge to edge. Notice that the stage micrometer is 1000 microns (µm) in length, and the field of view under the lowest magnification is 5000 µm. Describe how we measure it?Given: The used ocular objective while taking this image, has magnifying power of 6x The used objective while taking this image, has a magnifying power of 100x The used stage micrometer has spaces graduation of 01 mm each Ten (10) graduations pn the ocular micrometer conincided with two (2) graduations on the stage micrometer Question: What is the total magnification of the image under microscope? Show your solution.The significance of using immersion oil when using 1OOX objective lens is The significance of using immersion oll when uskng 100X objective lens is: It will increase the contrast by having same refractive index as the lens, loss of light by refraction, reflection and diffraction is minimized. the specimens need not be killed, fixed and stained more light is captured for better illumination, allowing the specimen to fluoresce i. il. iii. iv. A light microscope should have the following features contrast Resolution magnification fluorescence ii. iv.
- Which of the following statements are true about the use of a blank in spectrophotometry? Select all that apply. Select 2 correct answer(s) A blank is needed because the spectrophotometer also measures the absorbance of the cuvette and water. A blank must be measured prior to measuring your sample. None of the answer choices listed are correct. A blank must be measured after measuring your sample. A blank is only needed when the concentration of your sample is known.Given: The used ocular objective while taking this image, has magnifying power of 6x The used objective while taking this image, has a magnifying power of 100x The used stage micrometer has spaces graduation of 01 mm each Ten (10) graduations pn the ocular micrometer conincided with two (2) graduations on the stage micrometer Questions: What is the total magnification of the image under microscope? Show your solution. What is the distance of one ocular division? Show your solution. What is approximate cell length of Cell A, Cell B, and Cell C? What is approximate combine cell length of Cell A and Cell B? Show your solution. Remember: Always measure the cell length on the longest middle section of the cell!Which of the following is not required for a UV-vis absorption spectrophotometer? Group of answer choices camera detector monochromator light source
- Consider a bi convex lens with radius of curvatures |R1| = 30 mm and |R2| = 180 mm, ct = 5 mm and glass is N-BK7. This is used as camera lens in order to image a man who is at 1 km away from the camera. We want to resolve 10 cm on his body. Assume that λ = 550 nm. Using zemax, determine the MTF value for the resolution of R = 80 lp / mm in image plane which is placed at paraxial focus. (Hint: First, find the diameter of the lens) Which one: a.32.1 % b.28.7 % c.12.3 % d.58.5 % e.46.8 % f.57.2 % g.20.9 % h.15.6 %Given: The used ocular objective while taking this image, has magnifying power of 6x The used objective while taking this image, has a magnifying power of 100x The used stage micrometer has spaces graduation of 01 mm each Ten (10) graduations pn the ocular micrometer conincided with two (2) graduations on the stage micrometer Question: What is the distance of one ocular division? Show your solution.Previous question: The field of view is the maximum area visible through the lenses of a microscope, and it is represented by a diameter. To determine the diameter of your field of view, you can place a transparent metric ruler under the low power (10X) objective of a microscope. You would focus the microscope on the scale of the ruler and measure the diameter of the field of vision in millimeters. Refer to the image taken of this preparation below. What is the approximate field of view as seen by this 10X objective. Note: This microscope has a 10X eyepiece, giving a total magnification of 100X. The image shows the 1mm is for this question. - Answer for this question was 3mm.
- Given the following absorbance spectrum, to what wavelength should you set the spectrophotometer to measure your samples? Absorbance 400 500 600 Wavelength (nm) 700The basic components of a fluoroscopic x-ray system suitable for interventional procedures consists of a generator,x-ray tube and housing including collimator and filtration,patient table,anti-scatter grid and an image receptor.Describe the key design features and function each of these components and briefly discuss the role of automatic brightness controlThe FOV on low power of a microscope is measured to be 4.5mm. Using the chart below and the above listed formulas calculate: FOvx = FOvlow X Maglow Magx S.S. = FOvx # times the specimen fits across the FOv Total Mag = Ocular lens x objective lens a) What is the FOV on High Power? (Magnification on High power is 40x) Can you please include the units too. asap please.