It is because of the surface tension and cohesian of the molecules. It can be concave or convex.
Do you mean is a meniscus always concave? If so, then no. For example, the meniscus of mercury is convex.
You measure from the bottom curve of the meniscus.
volume and meniscus
Viewing across the flat portion of the meniscus.
A graduated Cylinder needs to be read at the meniscus.
As the diameter of the container decreases, the meniscus becomes more pronounced. The meniscus may be convex (curving upward) or concave (curving downward). Most of the time you will find that the meniscus is concave. The most notable exception is the meniscus that forms from mercury. When taking measurement readings it is important that the reading is done properly. The following rules must be adhered to: I. Read the meniscus at eye level. Do not read the meniscus from above or below eye level. Significant measurement errors may occur II. Read the bottom of a concave meniscus and the top of a convex meniscus.
A meniscus, but whether it has a positive curve or a negative one depends on whether it wets the glass.
nawt
water surface meniscus or knee cartilage meniscus?
The meniscus - the upward curve of a liquid in a narrow vessel.Read more: When_water_is_ina_container_the_surface_of_the_water_is_curved_this_curve_is_called
It's called Ya Mum's Panis
Water's meniscus curves up. Mercury's meniscus curves down.
Do you mean is a meniscus always concave? If so, then no. For example, the meniscus of mercury is convex.
Meniscus
meniscus is the level of a liquid in a cylinder.
You measure from the bottom curve of the meniscus.
You measure at the bottom of the meniscus.