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An object seen close up through a convex lens looks than it really is?
A convex lens is a mirror whose middle is larger than the top and bottom. A convex lens is more than two focal lengths. It is smaller and inverted between one and two focal lengths.
What is the difference between a thick convex lens and a thin convex lens?
In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the focal length of the lens. Lenses whose thickness is not negligible are sometimes called thick lenses.
When does convex lens act as a concave lens?
A convex lens acts as concave lens when it is kept in a medium whose optical density is higher than the lens itself. And the vice-verse is also true .i.e, a concave lens can act as convex lens too .
Can a convex lens behave as a concave lens?
yes...when the lens is immersed in a liquid whose refractive index is greater than that of the material of the lens, for example, an air bubble inside water....
What is the weight of rebar whose dimensions are 25MM diameter and 12meter length?
46.2kg
An object seen close up through a convex lens looks than it really is?
A convex lens is a mirror whose middle is larger than the top and bottom. A convex lens is more than two focal lengths. It is smaller and inverted between one and two focal lengths.
A polygon whose sides all have the same length is said to be?
A regular polygon.
What is the difference between a thick convex lens and a thin convex lens?
In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the focal length of the lens. Lenses whose thickness is not negligible are sometimes called thick lenses.
Does the photo in a 75-300 lens make the picture look like at 75 feet as it does at 300 feet?
No. My guess is that you have a zoom lens, whose focal length can be varied over the range of75 to 300 millimeters.The larger the focal length of the lens, the larger (closer) the objects in the picture appear.The handy, easy-to-remember rule that I use is: One focal length on the film (or CCD) depictsone radian in the scene (or sky).
What does mean the mm e.g. 18 -200 mm camera or 55-200 mm?
That number is the focal length of the camera's lens ... which focuses light from the scene to form an image on the 'film' or CCD inside the camera. The longer the focal length of the lens, the larger (nearer) the objects appear to be in the picture. (One radian of angle as seen by the lens ===> One focal length on the film.) On the cameras described in the question, the focal length is given as a range ... "from 18 to 200 mm", and "from 55 to 200 mm". Each of these is a "zoom" lens, whose focal length can be changed over the range, enabling the user to cause objects in the picture to appear somewhat nearer or farther away.
What shape is a convex hexagon?
A convex hexagon is a simple polygon whose interior is a convex set. It is a six-sided polygon, and it has no angles pointing inwards, meaning that no internal angles can be more than 180 degrees.
The rotunda is the focal point of whose design for the University of Virginia?
Thomas Jefferson
Find the number of sides of a regular convex polygon whose angle is 40degrees?
140
Formula for finding no of sides of a convex polygon whose no of sides is 44?
The number of diagnol formed by a convex polygon having N sides is {N*(N-1)/2} - N .
What is a closed plane figure having three convex sides?
A triangle whose sides are curved outwards.
When does convex lens act as a concave lens?
A convex lens acts as concave lens when it is kept in a medium whose optical density is higher than the lens itself. And the vice-verse is also true .i.e, a concave lens can act as convex lens too .
When does a concave lens act as convex lens?
A convex lens acts as concave lens when it is kept in a medium whose optical density is higher than the lens itself. And the vice-verse is also true .i.e, a concave lens can act as convex lens too .
