Question Detail

MIC 121 Microscopes Objective Question
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Question

How does a Dark-Field Microscope achieve its characteristic image?
Options
A It uses a beam of tungsten light focused directly on the specimen.
B It employs an opaque disk in the condenser to block direct light, allowing only reflected/refracted light to enter the objective lens.
Correct Answer
C It stains specimens with fluorochromes that emit light.
D It uses electron beams instead of light rays.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document explains, 'An opaque disk of this condenser blocks the light that would enter the objective lens directly. The only light that is reflected or refracted by the specimens enters the objective lens and forms an image'.

Hint

Focus on the unique component of the dark-field condenser and how it manipulates light.

Question Info

Course: MIC 121
Topic: Microscopes
Type: Objective
Difficulty: Not specified
Question 63 of 990
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