A concave mirror forms the image of an object on a screen. If the lower half of the mirror is covered with an opaque card, the effect would be to make the(a) image less bright.(b) lower half of the image disappear.(c) upper half of the image disappear.(d) image blurred.
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The image formed will be less brighter
The whole image will be formed by the rays passing through the upper half portion but the intensity of the image formed is proportional to the number of rays and hence it will be less brighter .
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Answer:
The image formed will be less brighter
Explanation:
The whole image will be formed by the rays passing through the upper half portion but the intensity of the image formed is proportional to the number of rays and hence it will be less brighter .
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