Question
A student has to observe a permanent slide of binary fission in amoeba. Find the correct sequence of steps given below for focusing the object under a microscope.
(a) Place the slide on the stage, look through the eye-piece and adjust the mirror to get proper illumination.
(b) Focus the slide sharp using fine adjustment screw
(c) Look through the eye-piece and raise the objective lens using coarse adjustment screw till the object is focused.
(d) Look through the eye-piece and move the slide till the object is visible.
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d, c, b, a
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a, b, d, c
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a, d, c, b
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a, c, d, b
Solution
C.
a, d, c, b
The correct order of steps is a, d, c, b.
