Consider the Image Formed by a Refracting Telescope

question 79

Multiple Choice

Consider the image formed by a refracting telescope. Suppose an opaque screen is placed in front of the lower half of the objective lens. What effect will this have?

• A)The top half of the image will be blacked out.
• B)The lower half of the image will be blacked out.
• C)The entire image will be blacked out, since the entire lens is needed to form an image.
• D)The image will appear as it would if the objective were not blocked, but it will be dimmer.
• E)There will be no noticeable difference in the appearance of the image with the objective partially blocked or not.

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