Brightfield Microscopy (continued) 4. The total magnification achieved when usin

Question

Brightfield Microscopy (continued) 4. The total magnification achieved when using a 100x oil immersion lens with 10x binocular eyepieces is a. 10x. b. 100x. c. 200x. d. 1000x. e. 2000x. 5. The most useful adjustment for increasing image contrast in low- power 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 Before the oil immersion lens is rotated into place, you should a. center the object of interest in the preceding lens. b. lower the stage with use of the coarse focus adjustment knob. c. place a drop of oil on the slide. d. Both (a) and (c) are correct. e. All are correct. 6.

Explanation / Answer

Ans-4

Total magnification= Magnification of objective lens × Magnification of eyepiece lens

= 100×10

Ans = 1000×

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