AT THE ESTIMATION OF THE VALUE OF THE COEFFICIENT OF NATURAL LIGHTING, USE THE DEVICE 1. Krotov's apparatus 2. cathatertometer 3. anemometer 4. luximeter 5. rheometer
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- Which of the following is NOT used to adjust the intensity of light? Question 1 options: iris diaphragm rheostat base diaphragm revolving nosepieceCompute the total magnification. [Use 10x magnification for eyepiece]1. Scanning2. LPO3. HPO4. OIOTo alter the amount of light coming through the stage someone should adjust the: Group of answer choices 1. eye pieces 2. coarse focus 3. objective 4. iris diaphragm 5. fine focus
- choose one of the vision problems that can be corrected by LASIK.If you have chosen the objective lens with 10x and the ocular lens magnification is also 10x. Then the total magnification will be 100x. True FalseThe most useful adjustment for increasing image contrast in lowpower magnification is a. closing down the diaphragm. b. closing one eye. c. opening up the diaphragm. d. placing a drop of oil on the slide. e. using a blue filter.
- What are the light sources used in UV-vis spectrophotometry.give ansUse the iris diaphragm to attain the best illumination of the letter “e” on the scanning (4x) objective. Open and close the iris diaphragm and notice the changes in contrast of the letter “e”. How did the appearance of the letter “e” change under the various levels of illumination? 1 Repeat the above procedure on the high-power (40x) objective. When increasing magnification, what happens to the light available? Why?The total magnification achieved when using a 100× oil immersion lens with 10× binocular eyepieces is a. 10×. b. 100×. c. 200×. d. 1000×. e. 2000×.
- discussion on obejective lenses: screening, low and high power objectives in an onion root tipWhat is the DFV of a 40x objective lens if the DFV of a 10x objective lens is 3 mm? Express your answer in μ (micra)In this image a stage micrometer and an ocular micrometer are aligned so that the 10 o.u. line aligns with the 100um line. The 200um line of the stage micrometer overlaps with the 90 o.u. line of the ocular micrometer. What is the calibration for this lens? eyepiece graticule 40 50 60 70 s0 9 100 stage micrometer 0.8 um/ou O 8 um/ou O 1.25 um/ou 0.25 um/ou