Is Archimedes' principle valid in an elevator accelerating up? In a car accelerating on a level road?

Important Questions on Fluid Mechanics

EASY

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>QUESTIONS FOR SHORT ANSWER>Q 11

Why is it easier to swim in seawater rather than in fresh water?

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>QUESTIONS FOR SHORT ANSWER>Q 12

A glass of water has an ice cube floating in the water. The water level just touches the rim of the glass. Will the water overflow when the ice melts?

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>QUESTIONS FOR SHORT ANSWER>Q 13

A ferry boat loaded with rocks has to pass under a bridge. The maximum height of the rocks is slightly more than the height of the bridge so that the boat just fails to pass under the bridge. Should some rocks be removed or some more rocks be added?

EASY

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>QUESTIONS FOR SHORT ANSWER>Q 14

Water is slowly coming out from a vertical pipe. As the water descends after coming out, its area of cross section reduces. Explain this on the basis of the equation of continuity.

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JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>QUESTIONS FOR SHORT ANSWER>Q 15

While watering a distant plant, a gardener partially closes the exit hole of the pipe by putting his finger on it. Explain why this results in the water stream going to a larger distance.

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JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>QUESTIONS FOR SHORT ANSWER>Q 16

A Gipsy car has a canvas top. When the car runs at high speed, the top bulges out. Explain.

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JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 13 - Fluid Mechanics>OBJECTIVE I>Q 1

A liquid can easily change its shape but a solid can not because:

EASY

JEE Main