FOOD TECHNOLOGY

Detailed explanation-1: -The definition of meniscus is the curve that exists on the surface of a liquid when it is placed into a container. This curve is either convex or concave. It develops because of the surface tension of the liquid inside the container.

Detailed explanation-2: -The meniscus of most liquids used in volumetric calibrations is concave-up, with the lowest point in the center that is used to determine the meniscus reading. The curvature of a meniscus is related to the surface tension of the liquid and inversely related to the diameter of the tubing in which it is formed.

Detailed explanation-3: -The upper meniscus is the inverse U curve on the top of the surface of a liquid while the lower meniscus is the U curve on the top of the liquid’s surface. Generally, the lower and upper meniscus are visually identified by taking a look at the surface of the liquid.