The image produced is a real image if the object is located at infinity and the lens is a convex lens. The produced image can actually be placed on a screen and photographed.
Easy way: Use it to form an image of the sun or moon, and measure the distance of the image behind the lens. When the object is at infinity, the distance between the lens and the image is the focal length of the lens.
Function of Convex lens: Convex lens causes parallel rays of light to converge after refraction. Also the following can also be considered as the functions of convex lens: 1.when the object is at infinity, convex lens forms the image at focus which is real and inverted. 2.when the object is beyond 2F, image is formed between F and 2F which is real, inverted and diminished. 3.when the object is at 2F ,image is formed at 2F,which is real , inverted and of same size. 4.when the object is between F and 2F, image is formed beyond 2F which is real,inverted and magnified. 5.when the object is at F,image is at infinity which is real inverted and very much magnified. 6.when the object is between F and C, image is formed beyond 2F and behind the object which is virtual, erect and magnified.
Lens distance is basically the distance from the lens to the film. This is determined when the lens is focused to infinity and is sometimes called the focal length.
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.
The image produced is a real image if the object is located at infinity and the lens is a convex lens. The produced image can actually be placed on a screen and photographed.
farther then f from the lens
Easy way: Use it to form an image of the sun or moon, and measure the distance of the image behind the lens. When the object is at infinity, the distance between the lens and the image is the focal length of the lens.
A 1300mm lens can see to infinity.
Function of Convex lens: Convex lens causes parallel rays of light to converge after refraction. Also the following can also be considered as the functions of convex lens: 1.when the object is at infinity, convex lens forms the image at focus which is real and inverted. 2.when the object is beyond 2F, image is formed between F and 2F which is real, inverted and diminished. 3.when the object is at 2F ,image is formed at 2F,which is real , inverted and of same size. 4.when the object is between F and 2F, image is formed beyond 2F which is real,inverted and magnified. 5.when the object is at F,image is at infinity which is real inverted and very much magnified. 6.when the object is between F and C, image is formed beyond 2F and behind the object which is virtual, erect and magnified.
distal
Distal
Lens distance is basically the distance from the lens to the film. This is determined when the lens is focused to infinity and is sometimes called the focal length.
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.
if you are using A+ it is lens
Hi dear, it is enough to draw incident rays parallel to principal axis. That ensures that the object is at infinity and no need to draw an object at all.
The eyepiece of the telescope doesn't magnify the object, but it does magnifythe real image of the object that forms at the focus of the primary lens or mirror.