Question

Which element of the light microscope is in charge of regulating the amount of light that enters the viewing area?

• A. Coarse adjustment screw
• B. Fine adjustment screw
• C. Diaphragm
• D. Condenser lens

Hint:

The diaphragm in a microscope controls the light intensity by adjusting the amount of light passing through the specimen.

Answer 1

The Correct Option is C

Step 1: Understanding the Components of a Light Microscope
In a light microscope, the diaphragm is the component responsible for regulating the amount of light that passes through the specimen and enters the viewing area.
Step 2: Explanation of Other Options
Option (a) is incorrect because the coarse adjustment screw is used for focusing the image, not regulating the light.

Option (b) is incorrect because the fine adjustment screw is used for fine focusing the image, not regulating light.

Option (d) is incorrect because the condenser lens focuses light onto the specimen but does not regulate the light intensity.
Step 3: Conclusion
Thus, the diaphragm is responsible for regulating the amount of light entering the viewing area of the microscope.