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What type of surface you would observe in the case of mercury with glass?(a) Concave meniscus(b) Convex meniscus(c) Contact angle = 180°(d) Contact angle = 0° |
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Answer» Right option is (b) Convex meniscus Easiest explanation: A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container and Mercury does not wet glass – the cohesive forces within the drops i.e., bond between the molecules of mercury are stronger than the adhesive forces between the drops and glass. |
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