The Light-Gathering Power of a Telescope Is Directly Proportional to

question 40

Multiple Choice

The light-gathering power of a telescope is directly proportional to

• A)the diameter of the primary mirror or lens.
• B)the focal length of the primary mirror or lens.
• C)the ratio of the focal lengths of its primary mirror or lens and its eyepiece.
• D)the length of the telescope tube.
• E)the diameter of the eyepiece.

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Definitions:

Horsepower Rating

A measure of power output that quantifies the mechanical work a machine can do, traditionally used to express the power of engines.

Rated Current

The maximum continuous current that a device or conductor can carry without exceeding its temperature rating.

Overcurrent Protection

Overcurrent protection involves using devices like fuses or circuit breakers to protect electrical circuits from damage caused by excessive currents.

Circuit Conductors

Materials or paths that allow the flow of electrical current within a circuit, such as wires or printed circuit board traces.