An image is formed by two 15cm lenses through a process called refraction. When light rays pass through the first lens, they are bent and converge at a focal point. This point becomes the object for the second lens, which then refracts the light rays again and forms an image at a further distance. The final image is a magnified and inverted version of the original object.
The distance between the two lenses, also known as the lens separation, determines the size and orientation of the final image. The larger the lens separation, the larger the image will be. However, if the lens separation is too small, the image will be distorted or not formed at all.
If the lenses are placed too close together, the light rays will not have enough space to converge and form a clear image. This can result in a blurred or distorted image. It is important to maintain an appropriate lens separation for the best image formation.
Yes, the focal length of the lenses can affect the image formed. A longer focal length will result in a larger magnification of the image, while a shorter focal length will result in a smaller magnification. Additionally, the focal length also determines the distance at which the image is formed from the lenses.
One limitation of using two 15cm lenses to form an image is that the image will have a limited field of view. This means that the image will only be able to capture a small portion of the object being viewed. Additionally, the image may also have some distortion or aberrations due to the curvature of the lenses, which can affect the accuracy of the image.