Question

इंप्लीमेंट एरिया एंगल ऑफ 120 5 डिग्री​

Answer 1

Answer:

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Step-by-step explanation:

uilibrium contact angles can be measured very simply from the profiles of liquid drops (Figure 2a) or bubbles (Figure 2b) resting on a plane surface. These methods are known as the sessile drop and captive bubble methods respectively. The contact angle may be measured indirectly by drawing a tangent to the profile at the point of three-phase contact after the profile has been enlarged by image projection or photography. The contact angle can be measured directly using a microscope fitted with a goniometer eyepiece. All the equipment necessary to obtain accurate measurements can be readily assembled in the laboratory although commercial instruments are also available.8, 9