1.

What will be the length of mercury column in a barometer tube when the atmospheric pressure is `75 cm` of mercury and the tube is inclined at an angle of `60^@` with the horizontal direction?

Answer» Correct Answer - 86.6 cm
`l =h//sin60^@ = 75//(sqrt3//2) = 75xx2//sqrt3` = 86.6 cm


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