If the lower half of a concave mirror is covered with an opaque material, what happens to the image of an object placed in front of the mirror?
AOnly the upper half of the object is imaged.
BOnly the lower half of the object is imaged.
CThe full image is formed, but it becomes less intense.
DNo image is formed because the mirror is incomplete.
Answer & Solution
Correct answer: C. The full image is formed, but it becomes less intense.
Each small portion of the mirror can form an image of the whole object because rays from every object point strike many parts of the mirror. Covering half the mirror reduces the reflecting area, so the image brightness decreases, but the full image is still formed.
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