Solve the Problem. -A Reflecting Telescope Contains a Mirror Shaped Like a Paraboloid

question 65

Multiple Choice

Solve the problem.
-A reflecting telescope contains a mirror shaped like a paraboloid of revolution. If the mirror is 24 inches across at its opening and is 4 feet deep, where will the light be concentrated?

• A) 0.1 in. from the vertex
• B) 10.1 in. from the vertex
• C) 0.2 in. from the vertex
• D) 0.8 in. from the vertex

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Definitions:

Fibrous Pericardium

The tough outer layer of the pericardium that protects the heart and anchors it within the thorax.

Serous Pericardium

The thin, transparent layer of tissue forming the inner lining of the pericardium, which secretes serous fluid to reduce friction during heartbeats.

AV Node

The atrioventricular node, a part of the heart's electrical conduction system that delays the signal before it passes to the ventricles.

SA Node

The sinoatrial node, a group of cells in the right atrium of the heart that regulates the heart's rhythmic contractions.