Year 8 - Microscope Quiz

The len that is within the eyepiece of the light microscope is called the...

• scanning

• low power

• high power

• ocular

To focus a specimen, it is best to start with an objective lens at _____ power.

On the image, which letter represents the objective lens?

• A

• B

• C

• D

On the diagram, which letter represents the coarse focus knob?

• A

• C

• C

• D

A microscope has a 4x ocular lens and a 10x objective, what is this microscope's total magnification?

• 4x

• 14x

• 40x

• 400x

What must be done to a specimen to increase the contrast of the structures viewed?

• illuminated

• stained

• placed under a cover slip

• thinly sliced

Microscopes with one ocular lens are referred to as ________?

Which objective lens provides the greatest (largest) field of view?

• high

• 100x

• low

• This depends on if the specimen is stained.

The field of view of a microscope with a 10X ocular and a 10X objective is 4mm. What is will be the field of view with a 40X objective?

• 1 mm²

• 1 mm

• 
  2 mm²

• 2 mm

If the ocular of a microscope is 10X and the objective is set at 100X, then what is the total magnification of the microscope?

• 10x

• 100x

• 1000x

• 10 000x