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Shane Macguire Grade: upto college level
        A barometer is constructed with its tube having radius 1.0 mm. Assume that the surface of mercury in the tube is spherical in shape. If the atmospheric pressure is equal to 76 cm of mercury, what will be the height raised in the barometer tube? The contact angle of mercury with glass = 135° and surface tension of mercury = 0.465 N m-1. Density of mercury= 13600 kg m-3.
3 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
										Sol. h = 2T cos θ/rpg
										
3 years ago
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