convex lens(converging lens)
Because the 2cm lens has 4 times the area of a 1cm lens. (area = Pi*r2)
stroke volume =end diastolic volume - end of systalic volume. But how to measure these volume i don't know?
volume as in TV volume or volume as in books. Answer 2 Volume often just means 'amount' as in 'a large volume of sales'. Also, the volume of a container is a measure of how much 'stuff' it can hold. The volume of a room is length x width x height. The volume of a sphere is 4/3 x pi x radius^3
a greater 1
It is lens. The lens consists of the lens capsule, the lens epithelium, and the lens fibres.
The ocular is the upper lens and objective is the lower lens
)( is a concave lens() is a convex lens
The objective lens
A crystalline lens is the lens in the human eye.
The pole of a lens is the midpoint of the lens' geometric axis. It is where the principal axis intersects the lens.
Double-convex lens
= A lens cap is a cover to a lens on a camera or camcorder.=
The upper lens is called the ocular lens or the eyepiece.
The Shutter.
It depends on the lens. Assuming parallel rays entering the lens: Convex lens - they converge, Concave lens - they dinverge.
A convex lens is also known as a converging lens, while a concave lens is also known as a diverging lens.