Tripling the Focal Length in a Telephoto Lens,while Keeping the Aperture

question 78

Multiple Choice

Tripling the focal length in a telephoto lens,while keeping the aperture size constant,will change the f-number by what factor?

• A)1/9
• B)1/3
• C)3
• D)9
• E)​1/6

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Definitions:

Hepatocytes

Hepatocytes are the main functional cells of the liver, responsible for detoxification, protein synthesis, and production of biochemicals necessary for digestion.

Hemocytoblasts

Stem cells in the bone marrow that can differentiate into various types of blood cells.

Negative Feedback

An adjustment process in which an initiating signal triggers a response that counterbalances the original effect, ensuring stability of the regulated substance.

Blood Vessels

Hollow channels facilitating blood flow throughout the body, which include arteries, veins, and capillaries.