Which of the following is NOT created by a stand magnifier?

Study for the NBEO Physiological Optics Test. Prepare with flashcards and multiple-choice questions, each question has hints and explanations. Ace your exam!

Multiple Choice

Which of the following is NOT created by a stand magnifier?

Explanation:
Image type with a magnifying lens depends on where the object sits relative to the focal point. With a stand magnifier you typically place the object within the focal length, producing a virtual image that is upright and magnified. Because the image is virtual, it cannot be projected onto a screen. A real image, which would be inverted and could be projected, occurs only when the object is at or beyond the focal point—which is not how a stand magnifier is used. So the thing not created by a stand magnifier is a real image.

Image type with a magnifying lens depends on where the object sits relative to the focal point. With a stand magnifier you typically place the object within the focal length, producing a virtual image that is upright and magnified. Because the image is virtual, it cannot be projected onto a screen. A real image, which would be inverted and could be projected, occurs only when the object is at or beyond the focal point—which is not how a stand magnifier is used. So the thing not created by a stand magnifier is a real image.

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