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 the distance from the converging lens to the object is less than the focal length of the lens the image will be out of focus.
I would have to agree with the statement but alsoadd that tha image would be upright, virtual, and larger than the object!
cannot be seen
The image will be at infinity. That's to say, there won't be any image formed.
The image will be virtual, upright, and larger the the object
Erect, enlarged, virtual image
When the object length is less than the focal length
Power is inversely related to the focal length. So convex lens of focal length 20 cm has less power compared to that having focal length 10 cm
It is called the focal length. It is equal to 1/2 times r, and is positive on concave mirrors and negative on convex mirrors.
because manifying power has inerse relation with that of focal length
The focal length of a convex mirror is half of its radius of curvature.
When the object length is less than the focal length
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.
For forming a smaller image than the object using convex and concave lenses, you can place the object closer to the convex lens than its focal length, then position a concave lens closer to the convex lens than the sum of their focal lengths. This arrangement will produce a smaller inverted image. Adjustments can be made by changing the distances between the lenses to fine-tune the size and position of the image.
to determine the focal length of a convex mirror.
Power is inversely related to the focal length. So convex lens of focal length 20 cm has less power compared to that having focal length 10 cm
The distance from the centre of the lens to the focal point.
its focal lenght becomes 2f
A positive lens is also called a magnifying lens. It has convex surfaces and it has a measureable focal length where it produces an inverted image of a distant object. The power in dioptres is the reciprocal of the focal length in metres.
Forget this work; and just go get laid.
It is called the focal length. It is equal to 1/2 times r, and is positive on concave mirrors and negative on convex mirrors.
because manifying power has inerse relation with that of focal length
The focal length of a convex mirror is half of its radius of curvature.