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20/10/2021 5:48 pm
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A student-focussed the leaf epidermal peel under the low power of microscope but could not see all the parts. He should
(1) use the coarse adjustment knob again to focus the slide.
(2) use the fine adjustment knob to increase magnification.
(3) focus under high power using coarse adjustment knob.
(4) focus under high power using fine adjustment knob.
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20/10/2021 5:50 pm
Correct answer: (4) focus under high power using fine adjustment knob.
Explanation:
In order to view all the parts of a leaf epidermal peel, the student should focus it under high power using fine adjustment knob. Cells are microscopic structures which can be clearly observed only under high power. It also enables us to observe various other components of cells.