Question:
How will the image formed by a convex lens be affected, if the upper half of the lens is wrapped with a black paper?
How will the image formed by a convex lens be affected, if the upper half of the lens is wrapped with a black paper?
Updated On: Dec 17, 2024
- The size of the image formed will be one-half of the size of the image due to complete lens.
- The image of upper half of the object will not be formed.
- The brightness of the image will reduce.
- The lower half of the inverted image will not be formed.
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The Correct Option is C
Solution and Explanation
Covering the upper half of the convex lens with black paper reduces the amount of light that passes through the lens. While the entire image will still be formed, it will be dimmer because less light is refracted to form the image. The size and position of the image will remain the same, albeit with less intensity.
Every part of a convex lens contributes to the formation of the image. Blocking part of the lens does not block part of the image; it just reduces the overall amount of light contributing to the image formation, making the resulting image fainter.
Every part of a convex lens contributes to the formation of the image. Blocking part of the lens does not block part of the image; it just reduces the overall amount of light contributing to the image formation, making the resulting image fainter.
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