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The convex lens will form complete image of an object, even if its one half is covered with black paper. It can be understood by the following two cases.
Case I
When the upper half of the lens is covered
In this case, a ray of light coming from the object will be refracted by the lower half of the lens. These rays meet at the other side of the lens to form the image of the given object, as shown in the following figure.
Case II
When the lower half of the lens is covered
In this case, a ray of light coming from the object is refracted by the upper half of the lens. These rays meet at the other side of the lens to form the image of the given object, as shown in the following figure.
What else can I help you with?
If you place two cans of water under a lamp for 10 minutes one covered with white paper and the other with black paper which one will heat up fastest?
The can covered with black paper will heat up faster than the one covered with white paper. This is because black paper absorbs more light and heat energy compared to white paper, which reflects light.
Why does a leaf turn black when its surface is covered with black paper?
When a leaf is covered with black paper, it cannot receive sunlight, which is necessary for photosynthesis. Without sunlight, the chlorophyll in the leaf breaks down and the leaf turns black due to the accumulation of other pigments such as anthocyanins and carotenoids.
What happens if you shine red light on black paper?
If you shine red light on black paper, the black paper will absorb most of the red light and appear dark. The red light that is not absorbed may be reflected or scattered, but it will not significantly change the appearance of the black paper.
How does light travel through a flashlight covered with a piece of black paper with a hole at the center of the black paper?
Light travels through the hole in the black paper as the paper blocks the light's path except for the hole, allowing a beam of light to pass through. The beam of light will be more focused and directional due to the small size of the hole.
What happens to light when shone on a black paper?
Anything perfectly black appears black because it absorbs all the colors of the visible spectrum instead of reflecting them like white paper, so the light energy is absorbed and transfered into heat energy (the paper warms up very slightly).
If you place two cans of water under a lamp for 10 minutes one covered with white paper and the other with black paper which one will heat up fastest?
The can covered with black paper will heat up faster than the one covered with white paper. This is because black paper absorbs more light and heat energy compared to white paper, which reflects light.
What happens to the leaves covered with black paper answer?
Leaves covered with black paper may not receive sunlight for photosynthesis, which can affect their growth and health. They may also be more prone to moisture retention and fungal growth due to the lack of air circulation. Eventually, the leaves may turn yellow and die off.
Why does a leaf turn black when its surface is covered with black paper?
When a leaf is covered with black paper, it cannot receive sunlight, which is necessary for photosynthesis. Without sunlight, the chlorophyll in the leaf breaks down and the leaf turns black due to the accumulation of other pigments such as anthocyanins and carotenoids.
Creased in a sentence?
A stray bullet just creased my scalp. The sheet of construction paper was creased longitudinally.
What will happen toif the bottle is painted in black or covered with black paper in bottle garden?
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What happens to a leaf of a plant if it is covered with a black piece of paper and kept in the sun for 3 -4 days?
The black paper absorbs heat and raises the temperature, causing the leaf to dry out and wilt due to excessive loss of moisture through transpiration. With prolonged exposure, the leaf may eventually die as it is deprived of sunlight for photosynthesis and becomes overheated.
What happens if you shine red light on black paper?
If you shine red light on black paper, the black paper will absorb most of the red light and appear dark. The red light that is not absorbed may be reflected or scattered, but it will not significantly change the appearance of the black paper.
What happens to black paper when it is lane out in the snow with sunshine?
It gets very soggy
What would happen if only half the leaf were covered with black construction paper?
The half of the leaf covered with black construction paper would not be able to photosynthesize, as it would not receive any sunlight. The uncovered half of the leaf would continue to photosynthesize, but the overall productivity of the leaf would be reduced.
How does light travel through a flashlight covered with a piece of black paper with a hole at the center of the black paper?
Light travels through the hole in the black paper as the paper blocks the light's path except for the hole, allowing a beam of light to pass through. The beam of light will be more focused and directional due to the small size of the hole.
Does photosynthesis happen under black filter paper?
If the paper is thick enough to prevent any light from passing through it then no photosynthesis will occur in the area covered by the paper.
What happened to the leaf not covered with black paper or cloth and keep in sunlight for 1 week?
The leaf will continue to photosynthesize and produce glucose through sunlight exposure. However, the portion covered with black paper or cloth will not undergo photosynthesis due to lack of light. This difference in light exposure will likely result in varying levels of glucose production and overall health between the covered and uncovered parts of the leaf.
