Question

• MICROSCOPE LAB
• Part 1. THINGS TO DO: Determine total magnification of your microscope

View the microscope and use the table below to calculate total magnification for each lens (following the example for the 4x):

	Ocular Lens	x	Objective Lens	=	Total Magnification
Scanning Objective	10	x	4	=	40x
Low Power Objective	10	x
High Power Objective	10	x

• Part 2. THINGS TO DO: Explore Slide Lighting

• Place any of the provided pre-made slides on microscope stage and answer the following questions:
  1. If the slide is not illuminated brightly, what should you do? (list at least two possibilities)
  2. If the light is too bright, causing eyestrain, what should you do? (list at least two possibilities)

• State the inversion phenomenon in your own words:

Answer 1

Low power objective = 10 ocular lens x 1 objective lens = 10x

High power objective = 10 ocular lens x 10 objective lens = 100x

If the slide is not illuminated brightly, what should you do?

1. Change the magnification. Light intensity will increase with decrease in magnification.

2. Change the position of the mirror of the microscope/ or change the brightness of light source of the microscope in case you are using light microscope that will help to focus more light.

If the light is too bright, causing eyestrain, what should you do?

1. Change the size of the opening through which the light passes.

2. Change the position of the mirror of the microscope/ or change the brightness of light source of the microscope in case you are using light microscope that will help to control the amount of light.