Compound Microscope: Parts and History
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Questions and Answers

What part of the microscope is used to reflect light from an external light source up through the bottom of the stage?

  • Illuminator (correct)
  • Eyepiece lens
  • Arm
  • Tube

Which part of the compound microscope supports the tube and connects it to the base?

  • Eyepiece lens
  • Base
  • Tube
  • Arm (correct)

What is the function of the objective lens in a compound microscope?

  • To look through
  • To support the tube and connect it to the base
  • To connect the eyepiece to the objective lenses
  • To enlarge the image (correct)

Which part of the microscope is used for support and forms the bottom of the microscope?

<p>Base (C)</p> Signup and view all the answers

What is the purpose of the condenser lens in a microscope?

<p>To focus the light onto the specimen (D)</p> Signup and view all the answers

What is the function of the rack stop in a microscope?

<p>To prevent the high power objective lens from hitting the slide (A)</p> Signup and view all the answers

What does an Abbe condenser do in a microscope?

<p>Controls the light passing through the specimen before entering the objective lens (A)</p> Signup and view all the answers

What is the purpose of a mechanical stage in a microscope?

<p>To move the slide around by turning two knobs (C)</p> Signup and view all the answers

What is the significance of DIN standard in microscope objective lenses?

<p>It is a German standard adopted internationally for optical quality (D)</p> Signup and view all the answers

What is the role of a revolving nosepiece or turret in a microscope?

<p>It holds two or more objective lenses and can be rotated to easily change power (D)</p> Signup and view all the answers

Flashcards

What is the illuminator?

The illuminator is the light source used in a microscope. It can be a built-in bulb or an external light source. The illuminator directs light up through the stage, illuminating the specimen being viewed.

What is the arm?

The arm connects the tube of the microscope to the base. It provides support and stability for the microscope.

What does the objective lens do?

The objective lens magnifies the image of the specimen. The objective lens is located near the specimen on the microscope.

What is the base?

The base of the microscope provides support and stability for the entire microscope.

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What is the condenser?

The condenser lens focuses light onto the specimen before it enters the objective lens. This ensures the specimen is brightly illuminated.

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What does the rack stop do?

The rack stop prevents the high-power objective lens from accidentally smashing into the slide. It limits how close the objective can get to the slide.

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What does the Abbe condenser do?

The Abbe condenser controls the amount of light passing through the specimen before it reaches the objective lens. It helps adjust the brightness and contrast of the image.

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What is the mechanical stage?

The mechanical stage is a platform on the microscope that holds the slide. It has two knobs that allow you to move the slide around precisely.

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What is DIN standard?

DIN standard ensures that objective lenses from different manufacturers are compatible with each other. This standard guarantees comparable quality and performance.

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What is the revolving nosepiece?

The revolving nosepiece, or turret, holds multiple objective lenses. You can rotate it to easily change the magnification of the microscope by switching between the objective lenses.

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