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The figure below shows a light microscope.

The figure below shows a light microscope.
52420191310.png
(a) State the functions of the parts labelled 1, 2, and 3.
(b) (i) State two differences between an electron microscope and a light microscope.
(ii) Give one advantage of using a light microscope over that of an electron microscope.
(c) Calculate the magnification that is obtained when an object is viewed with a X10 eye piece and a X100 objective lens.

Answers


sharon
(a) 1 - Stage
Flat platform where specimen on the slide is placed ;
2 - Condenser
Concentrates light on the stage ;
3 - Mirror
Reflects light through, the condenser to theobject ;
(b) (i) Electron microscope Light microscope
1. Has a higher magnification Has a lower magnification ;
2. Higher resolving power. Lower resolving power ;
3. Use electro magnets to magnify. Uses lens to magnify ;
4. Use electron beams to illuminate. Use light to illuminate ;
5. Specimen must be dead Specimen can be alive or dead;

(ii) Light microscope can be used to view lifespecimens / organisms ;
(c) Eye piece lens X Objective lens magnification
10 x 100 ; = 1000
Magnification is x1000 ;
sharon kalunda answered the question on May 24, 2019 at 10:14

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