The image of a bright object is brought on the screen with a concave mirror. If upper…
Physics · JEE Main · NTA Exams — Optics
The image of a bright object is brought on the screen with a concave mirror. If upper half of mirror is covered, what is the effect on the image?
- its size is halved
- brightness is reduced
- image changes position
- image disappears
Answer
(B) brightness is reduced
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