A Thin Double-Convex Lens Is Intended to Focus the Image $83 \mathrm {~cm}$

question 63

Multiple Choice

A thin double-convex lens is intended to focus the image of an object onto a screen so that the image is life-sized on the screen. The lens has equal-magnitude radii of $83 \mathrm {~cm}$ and a refractive index of 1.6.
(a) What is the distance $d$ from the image to the screen?
(b) What is the total distance $L$ between the object and the image?

• A) (a) \(d = 69 \mathrm {~cm}\)
• (b) \(L = 35 \mathrm {~cm}\)
• B) (a) \(d = 138 \mathrm {~cm}\)
• (b) \(L = 276 \mathrm {~cm}\)
• C) (a) \(d = - 138 \mathrm {~cm}\)
• (b) \(L = - 276 \mathrm {~cm}\)
• D) \(( \mathrm { a } ) d = 276 \mathrm {~cm}\)
• (b) \(L = 552 \mathrm {~cm}\)

Distinguish between the different zones of the respiratory system.

Identify respiratory system structures from photomicrographs.

Understand the role and function of alveolar cells.

Appreciate the anatomical and functional differences between human and sheep lungs.

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Definitions:

Oculus

A round or eye-like opening in a structure, often at the apex of a dome, letting light or air inside.

Dome

An architectural element resembling the upper half of a sphere, often used to cover a large space without internal supports, symbolizing the heavens or the sky in religious buildings.

Peristyle

In classical architecture, a colonnade all around the cella and its porch(es). A peripteral colonnade consists of a single row of columns on all sides; a dipteral colonnade has a double row all around.

Split

A city in Croatia known for its ancient ruins, particularly the Diocletian's Palace, and its beautiful Adriatic coastal location.