What happens if you cover half of a convex lens?

What happens if you cover half of a convex lens?

Cover half the lens If we cover the top half of the lens, the image just gets dimmer. This tells us that light from all parts of the object goes through all of the lens and then forms the image, so we’re losing about half the light from every part of the object when we block half the lens.

How will the image formed by a convex lens be affected if the upper half?

There will be no effect.

How will the image formed by a convex lens be affected if the upper half of the lens is wrapped with a black paper black paper?

The image formed by a convex lens will not be affected if the upper half of the lens is wrapped with a black paper because each part of the lens forms an image , only the brightness and intensity of the image will be affected.

What happens if the lower half of a convex lens is painted dark?

As the light rays coming from the visible body are interrupted for its lower part of lens being covered through black paper,the possibility of refraction through the convex lens is obstructed, making the image blurred.

What will happen if one half of a convex lens is covered with a black paper?

When one half of a convex lens is covered with a black paper,the lens will produce the complete image because the light rays incident on the other part of the lens will converge and form the image.

What happens when you cover a lens?

When you cover the top half of the lens, the bottom half of the image disappears; when you cover the bottom half of the lens, the top half of the image disappears. Nothing happens in either case.

What is the effect on the image formed by convex lens?

When an object is placed at a finite distance from the lens, a virtual image is formed between the pole and the focus of the convex lens. The size of the image is larger than that of the object.

Can a concave lens form an image of size half of the object?

A concave lens cannot form an image two times that of the object because it always forms a diminished image.

What happens to the image formed by convex lens if its lower part is blackened?

Every part of a lens forms a complete image. If the lower part of the lens is blackened, even then complete image will be formed but its intensity will decrease.

What happens if a lens is blackened on one half?

Note: Even if half of the convex lens is covered with a black sheet of paper, the lens will produce a complete image of the object. However, the intensity of the image will be less and the image formed will be less bright as compared to the one formed by a complete convex lens.

What happens to the image formed by a convex lens if its lower part is black and?

What happens when a lens is blackened on one half?

When one half of a convex lens is covered with a black paper,the lens will produce the complete image because the light rays incident on the other part of the lens will converge and form the image. Hope it helps you!!

What happens when you cover a convex lens with black paper?

Take the lens and cover half of it with the second sheet of black paper. Mount the lens on the table in the original position and repeat the above experiment. A focussed image is obtained in both the experiments. However, the image formed with half the lens covered is less bright as compared to when it is uncovered.

How is the image formed by a convex lens affected?

the brightness of the image is reduced. if the upper half of the lens is wrapped with a black paper, it will only reduce the amount of light passing through the lens and not the image formation. Answer verified by Toppr Upvote (0)

What do you do with half of a convex lens?

Take the sheet of paper and place it on the other side of the lens of the candle. Now focus the image formed on the sheet of paper by moving the sheet only. Observe the image. Mark the positions of candle, lens and screen. Now, turn off the light. Half a portion of the lens is covered with a second sheet of black paper.

How to look at a convex lens with a candle?

Light a candle with a match stick and place it on one side of the lens on the table. Turn of the lights of the room so that it gets dark. Take the sheet of paper and place it on the other side of the lens as the candle. Now focus the image formed on the sheet of paper by moving the sheet only. Observe the image.