If It Is to Be 40 Percent Efficient, a Heat

question 6

Multiple Choice

If it is to be 40 percent efficient, a heat engine that exhausts heat at 350 K must absorb heat at a minimum temperature of

• A) 210 K.
• B) 583 K.
• C) 875 K.
• D) 1038 K.

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Definitions:

Fovea Centralis

The fovea centralis is a small depression in the retina of the eye where visual acuity is highest, due to the concentration of cones, which are photoreceptor cells responsible for color vision.

Optic Disc

The point in the eye where the optic nerve connects to the retina, often referred to as the blind spot because it lacks photoreceptors.

Cornea

The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber, contributing to the eye's ability to focus light.

Posterior Chamber

The fluid-filled space in the eye between the iris and the lens, forming part of the eye’s anterior segment and involved in maintaining intraocular pressure.