Forget this work; and just go get laid.
A convex lens converges light rays to a focal point, which creates a real and inverted image if the object is placed beyond the focal length. If the object is placed within the focal length, a virtual and upright image is formed.
When object is within the focal distance then virtual image is formed. But when the object is placed beyond the focus of the covex lens ie if the distance of the object is more than focal length then real image is formed.
When object is within the focal distance then virtual image is formed. But when the object is placed beyond the focus of the covex lens ie if the distance of the object is more than focal length then real image is formed.
The image formed by a convex lens depends on the object distance from the lens, the focal length of the lens, and the object size. These factors determine whether the image formed is real or virtual, magnified or diminished, and upright or inverted.
If an object lies within the focal length of a convex lens, its image will be erect, bigger in size and virtual. It will be on the same side of the object.
Convex (I prefer converging lenses) lenses are thicker in the middle than at the edges. This causes the rays to converge towards the principle axis (line running through the center of the lens perpendicular to the surface). two images will be formed. When the object you are viewing is farther from the lens than the focal length you will have an inverted real image. This image can be enlarged (when the object is between the focal length and twice the focal length), the same size (when the object is twice the focal length from the lens) or reduced (when the object is beyond twice the focal length). When the object is closer to the lens than the focal length you are using the lense as a magnifying glass and you will have an upright virtual image.
The position of the object relative to the focal point of the convex lens determines whether a real or virtual image is formed. If the object is beyond twice the focal length of the lens, a real inverted image is formed. If the object is within twice the focal length, a virtual upright image is formed.
For a convex mirror, the focal length (f) is half the radius of curvature (R) of the mirror. This relationship arises from the mirror formula for convex mirrors: 1/f = 1/R + 1/v, where v is the image distance. When the object is at infinity, the image is formed at the focal point, and the image distance is equal to the focal length. Hence, 1/f = -1/R when solving for the focal length in terms of the radius of curvature for a convex mirror.
A convex lens forms a real or virtual, inverted or upright image, depending on the object distance and the focal length of the lens. The image can be either magnified or reduced in size compared to the object.
Since the object is placed beyond the focal length of the convex lens (50 cm > 20 cm), the image will be real, inverted, and formed between the focal point and twice the focal length on the opposite side of the lens. The position of the image can be calculated using the lens formula: 1/f = 1/v - 1/u, where f is the focal length of the lens, v is the image distance, and u is the object distance.
When the object is positioned at more than twice the focal length of a convex lens, the image formed is real, inverted, and smaller in size. The image is formed between the focal point and the optical center of the lens.
A focal point in a convex lens is the point where parallel rays of light converge after passing through the lens. It is located on the principal axis of the lens at a specific distance from the lens center, known as the focal length. This focal point is where an image is formed when an object is placed at an appropriate distance from the lens.