Using and caring for a light microscope Practice exercise 4

Refer to the microscope below. Which part holds and allows rotation of the objective lenses?

Refer to the microscope below. Which part holds and allows rotation of the objective lenses?

Refer to the microscope below. Which part holds and allows rotation of the objective lenses?

Refer to the microscope below. Which part holds and allows rotation of the objective lenses?    (1 mark)

Refer to the microscope below. Which part holds and allows rotation of the objective lenses?    (1 mark)

Refer to the microscope below. Which part holds and allows rotation of the objective lenses?    (1 mark)

Which part of a light microscope holds and allows rotation of the objective lenses?    (1 mark)

Look at the microscope image below. Which part is the high power objective lens?

Look at the microscope image below. Which part is the high power objective lens?

Look at the microscope image below. Which part is the high power objective lens?

Look at the microscope image below. Which part is the high power objective lens?   (1 mark)

Look at the microscope image below. Which part is the high power objective lens?   (1 mark)

The diagram below shows a light microscope. Which part is the high power objective lens?   (1 mark)

The diagram below shows a light microscope. Which part is the high power objective lens?   (1 mark)

If the eyepiece magnifies 10x and the objective lens magnifies 40x, what is the total magnification?

When using the high-power objective lens (40×) on a light microscope, which of the following practices ensures safe and correct usage? (1mark)

When using the high-power objective lens (40×) on a light microscope, which of the following practices ensures safe and correct usage? (1mark)

When using the high-power objective lens (40×) on a light microscope, which of the following practices ensures safe and correct usage? (1 mark)

Which cleaning material is best for cleaning the optical lenses of a light microscope?

Which cleaning material is best for cleaning the optical lenses of a light microscope? (1 mark)

Which cleaning material is best for cleaning the optical lenses of a light microscope? (1 mark)

Which cleaning material is best for cleaning the optical lenses of a light microscope? (1 mark)

Which part of a light microscope regulates the amount of light reaching the specimen?

Which part of a light microscope regulates the amount of light reaching the specimen?

Which part of a light microscope regulates the amount of light reaching the specimen?

Which part of a light microscope regulates the amount of light reaching the specimen? (1 mark)

Which part of a light microscope regulates the amount of light reaching the specimen? (1 mark)

Which part of a light microscope regulates the amount of light reaching the specimen? (1 mark)

A student places a slide under the microscope and immediately switches to the high-power objective. What is the risk of this action?

A student places a slide under the microscope and immediately switches to the high-power objective. What is the risk of this action?   (1mark)

A student places a slide under the microscope and immediately switches to the high-power objective. What is the risk of this action?   (1mark)

A student places a slide under the microscope and immediately switches to the high-power objective. What is the risk of this action?   (1 mark)

Look at the microscope below. A student says the image is blurry even after adjusting both knobs. What is the likely reason?

Look at the microscope below. A student says the image is blurry even after adjusting both knobs. What is the likely reason?   (1 mark)

Look at the microscope below. A student says the image is blurry even after adjusting both knobs. What is the likely reason?   (1 mark)

The diagram below shows a light microscope. A student says the image is blurry even after adjusting both knobs. What is the likely reason?   (1 mark)

The diagram below shows a light microscope. A student says the image is blurry even after adjusting both knobs. What is the likely reason?   (1 mark)

While using the coarse adjustment knob under high power, a student hears a cracking sound. What went wrong?

While using the coarse adjustment knob under high power, a student hears a cracking sound. What went wrong?  (1 mark)

While using the coarse adjustment knob under high power, a student hears a cracking sound. What went wrong?  (1 mark)

While using the coarse adjustment knob under high power, a student hears a cracking sound. What went wrong?  (1 mark)

You are using the microscope below but the field of view appears completely dark. What should you check first?

You are using the microscope below but the field of view appears completely dark. What should you check first?  (1 mark)

You are using the microscope below but the field of view appears completely dark. What should you check first?  (1 mark)

You are using the microscope below but the field of view appears completely dark. What should you check first?  (1 mark)

You are using a light microscope but the field of view appears completely dark. What should you check first?  (1 mark)

After setting up the microscope, a student notices black spots that do not move even after adjusting focus. What is the most likely cause?

After setting up the microscope, a student notices black spots that do not move even after adjusting focus. What is the most likely cause?  (1 mark)

After setting up the microscope, a student notices black spots that do not move even after adjusting focus. What is the most likely cause?  (1 mark)

After setting up the microscope, a student notices black spots that do not move even after adjusting focus. What is the most likely cause?  (1 mark)