1 / 7

Meniscus

Meniscus. Meniscus. The meniscus (plural: menisci , from the Greek for " crescent ") is the curve in the upper surface of a liquid close to the surface of the container or another object, caused by surface tension .

delta
Download Presentation

Meniscus

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Meniscus

  2. Meniscus • The meniscus (plural: menisci, from the Greek for "crescent") is the curve in the upper surface of a liquid close to the surface of the container or another object, caused by surface tension. • It can be either convex or concave. A convex meniscus occurs when the molecules have a stronger attraction to each other (cohesion) than to the material of the container (adhesion).[1]

  3. Meniscus • One can over-fill a glass with mercury and produce a convex meniscus that rises above the top of the glass. • Conversely, a concave meniscus occurs when the molecules of the liquid attract those of the container's, causing the surface of the liquid to cave downwards. This can be seen in a glass of water.

  4. Meniscus • When reading a scale on the side of an instrument filled up with liquid, the meniscus must be taken into account in order to obtain a precise measurement. Manufacturers take the meniscus into account and calibrate their measurement marks relative to the resulting meniscus.

  5. Meniscus • The measurement is taken with the meniscus at eye level to eliminate parallax error, and at the center of the meniscus. • Read at the top of a convex meniscus, • or • Read at the bottom of a concave meniscus.

  6. Meniscus

More Related