Solution) The light gathering ability of a microscope objective is quantitatively expressed in terms of N.A. which is a measure of number of highly distracted image forming light rays captured by the objective .

10) Which objective has the greatest light gathering capability, a 40X 0.75 NA air objective, a...
- What microscope objective would result in the best optical resolution, a 40X 0.75 NA air objective, a 40X 1.2 NA water immersion objective, or a 40X 1.3 NA oil immersion objective? Why? Describe briefly cause I dont understand it at all thank you.
Which of these telescopes has the largest mirror, that is, the most "light gathering" capability? Large Synoptic Survey Telescope, or "LSST", now under construction. in Chile. James Webb Space Telescope, to be launched by NASA and ESA in 2020, and placed into orbit at a Lagrange point far from Earth. Palomar telescope, in California north of San Diego. Hubble Space Telescope, now in low Earth orbit.
Which of these has the greatest ionization energy? Ar, Na+, Na, Mg, Kr? the answer says that it is Na+, because it is the smallest, but why isnt argon the smallest atom? The periodic trend for atom size is that the atom size decreases going up and across the periodic table.
100. Flare is: (a) the widest frequency of light that can enter an objective (b) the bending of light as it passes through different substances (c) wavelength/2NA (d) when the beam of light "spreads" wider than the objective's "hole" (e) wavelengths of light too short to enter the objective 101. Coccobacillus shaped bacteria are considered to be_?_ (a) cocci (b) bacilli (c) diplobacilli (d) diplococci (e)answers a and b only 102. This microscope is used for cheap and quick "'diagnosis"...
Which of the following substances has greatest solubility in water? SA CUCI, Ksp = 19x 10-7 • PbF2, Ksp = 3.6 x 10-8 Cds, Ksp - 1.0 x 10-24 SrS04, Ksp = 3.2 107 Ba(103)2, Ksp - 1.5 x 10-9
10.A narrow beam of white light is incident normally on the surface of a triangular silicate flint glass prism with one angle of 90. The index of refraction for violet light is 1.66 and for red light is 1.61. The angle in the prism is equal to 30° of glass. a. On the diagram below show an approximate sketch for the refracted light from the opposite face of the prism. Air B White light 780° Glass Calculate angular separation between...
1. Fill out the following table by indicating which general technique (light microscopy (LM) or electron microscopy (EM]) could be used to observe each structure or phenomenon. Put "no" in the box if the technique could not be used. If light microscopy can be used, name one technique (bright-field, phase-contrast, fluorescence, etc.) that you think would be effective. You will find some useful information in Appendix 1 of this manual and Chapter 18 of your textbook. Structure or phenomenon Could...
69. THE ENDOSPORE itself is might to stain_?_ color in an ACID FAST stain. (a) HOT pink (c) purple (d) green (e) baby-blue 70. All STAINS begin with a properly prepared _?_ . (a) dye (b) slide (c) smear (d) dog (e) cat 71. Which of the following is an ENDOTOXIN found in some microbes? This is results in fever, blood vessel dilation and possibly SHOCK when it is released into the human blood stream? (a) the plasma membrane (b)...
16. A Young's double slit has a slit separation of 2.50 x 10 m on which a monochromatic light beam is directed. The resultant bright fringes on a screen 1.00 m from the double slit are separated by 2.30 x 10 m. What is the wavelength of this beam?(1 nm-10 m) a. 373 nm b, 454 nm 575 nm d. 667 nm 17. What is the minimum thickness of a glycerin film (n 1.47) on which light of wavelength 600...
24. The energy rewed during the splining or 10. Which of the ding material transform fusing of atomic aclelis cecelery to hestene a) Chemical egy by Electrical energy het bell e) Noclear en electrice Heather d) Electric guitar 25. Which of the following appliances changes 31. Which of the following appliances asform electrical energy to und energy! (s) clectrical energy to sound energy Refrigerator motor It Electric guitar a) Cooker b) Guia Il Radio Microwave a) I only d) Electricire...