Positive.
Positive.
Positive.
Positive.
Positive.
convex lens(converging lens)
magnification is the ability to make things larger they they actually are by taking the lens from a microscope or by just using a microscope and magnifying the object.
Assuming that the shape is like the cross section of a convex lens, the perimeter is 16.17 units.
10 x * 40x = 400x
Because the 2cm lens has 4 times the area of a 1cm lens. (area = Pi*r2)
The focal point F and focal length f of a positive (convex) lens, a negative (concave) lens, a concave mirror, and a convex mirror. The focal length of an optical system is a measure of how strongly the system converges or diverges light.
please help i need this question answered I believe a bi-convex lens, that is, a lens with an outward curve on both surfaces, would provide the greatest magnification in a simple (single) lens system.
converging lens
Binoculars uses lenses for magnification mainly. Two convex lens and prisms are used
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.
concave or convex lenses are used depending upon the eye power whether your eye power is positive or negative.
It was a tube with lenses at each end. The magnification ranged from 3X to 9X depending on the size. The eyepiece lens was bi-convex and the far end lens was plano-convex.
a convex lens
projector have concave or convex
convex lens
yes...it is a plano-convex lens....wid grooves cut in it on convex side...it is very very thin as compared to a simple convex lens
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.