10
QuizMultiple Choice

Lenses

Question 10 • BHS-Physics B-CR

Alexis is studying how lenses work. She looks through a magnifying glass and through the peephole of a door.

Answer
A
The lens in the magnifying glass can produce both real and virtual images, but the lens in the peephole can produce only real images.
B
The lens in the magnifying glass can produce only real images, but the lens in the peephole can produce both real and virtual images.
C
The lens in the magnifying glass can produce both upright and inverted images, but the lens in the peephole can produce only upright images.
D
The lens in the magnifying glass can produce only inverted images, but the lens in the peephole can produce inverted and upright images.

Explanation

A magnifying glass uses a converging lens. When an object is inside its focal length, it forms an upright virtual image; when the object is farther away, it can form an inverted real image. A door peephole typically uses a diverging lens, which forms an upright virtual image, so it produces only upright images.

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