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301.

Two capillary tubes of radii 0.2 cm and 0.4 cm are dipped in the same liquid. The ratio of height through which liquid will rise in the tube isA. `1:2`B. `1:4`C. `2:1`D. `1:4`

Answer» Correct Answer - C
` (h_(1))/(h_(2))= (r_(2))/(r_(1)) = 2/1 `
Discussion
302.

Water rises against gravity in a capillary tube when its one end is dipped into water becauseA. Pressure below the meniscus is less than atmospheric pressureB. Pressure below the meniscus is more than atmospheric pressureC. Capillary attracts waterD. Of viscosity

Answer» Correct Answer - A
Discussion
303.

During capillary rise of a liquid in a capillary tube, the surface of contact that remains constant is ofA. Glass and liquidB. Air and glassC. Air and liquidD. All of these

Answer» Correct Answer - C
Discussion
304.

Two capillary tubes of radii 0.2 cm and 0.4 cm are dipped in the same liquid. The ratio of height through which liquid will rise in the tube isA. `1:2`B. `2:1`C. `1:4`D. `4:1`

Answer» Correct Answer - B
Discussion
305.

The height of water level in a capillary tube on the surface of earth is h . If the whole arrangemaent is taken to a gravity free space , the liquid level willA. remain unchangedB. decreasesC. increases a littleD. continous to rise

Answer» Correct Answer - D
Discussion
306.

The rise of liquid in a capillary tube depends on :A. the pressure outside the capillaryB. the inner radius of the tubeC. the outer radiusD. all of the above

Answer» Correct Answer - B
Discussion