A Glass Tube Has One End in a Dish of Mercury

question 151

Multiple Choice

A glass tube has one end in a dish of mercury and the other end closed by a stopcock.The distance from the surface of the mercury to the bottom of the stopcock is 800 mm,as indicated by the meter stick shown in the drawing below.The apparatus is at 20°C,and the mercury level in the tube is the same as that in the dish.
-Which drawing best shows the approximate level of the mercury in the tube when a vacuum pump is connected to the top of the tube,the stopcock opened,the tube is evacuated,the stopcock is closed,and the pump is removed,and the stopcock is reopened?

• A)drawing (1)
• B)drawing (2)
• C)drawing (3)
• D)drawing (4)

Distinguish between negotiable and non-negotiable instruments.

Grasp the concept of endorsement and delivery in the negotiation of instruments.

Appreciate the significance of having a negotiable instrument in international commerce.

Understand the role and requirements of signatures in negotiable instruments.

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Age

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