Which of the following statements is correct? The reading of pressure on a mercury barometer is independent of

A. The cross-sectional area of the tube
B. The atmospheric pressure
C. The density of mercury
D. The temperature of mercury
E. The acceleration due to gravity

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Question 3 :

JAMB 1981

A liquid-in-glass thermometer should quickly register temperature changes. This is achieved by choosing a liquid that

A. Is opaque
B. Has high density
C. Has regular expansion
D. Has a high thermal conductivity
E. Can wet glass

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