V=1/3pi X^2(3r-X)
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
lower power= 20 x 10= 200x higher power= 20 x 43= 860x
A contact lens case typically holds a volume of about 5 to 10 milliliters of solution. This is much smaller than a liter (1,000 milliliters) or a kiloliter (1,000,000 milliliters). Therefore, a contact lens case is measured in milliliters.
It is lens. The lens consists of the lens capsule, the lens epithelium, and the lens fibres.
)( is a concave lens() is a convex lens
The ocular is the upper lens and objective is the lower 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
The best lens hood for a Canon 55-250 lens is the Canon ET-63 lens hood. It helps reduce lens flare and protects the lens from unwanted light.
The best lens hood for a Canon 18-55mm lens is the Canon EW-63C lens hood. It helps reduce lens flare and protects the lens from accidental bumps and scratches.
A converging lens is also known as a magnifying lens. The shape of the lens is a double convex shape.
It depends on the lens. Assuming parallel rays entering the lens: Convex lens - they converge, Concave lens - they dinverge.