Which of the following statements is not true?

1. | The coefficient of viscosity is a scalar quantity. |

2. | Surface tension is a scalar quantity. |

3. | Pressure is a vector quantity. |

4. | Relative density is a scalar quantity. |

Subtopic: Â Pressure |

Â 68%

From NCERT

NEET - 2023

Please attempt this question first.

Hints

Please attempt this question first.

Two copper vessels \(A\) and \(B\) have the same base area but are of different shapes. \(A\) takes twice the volume of water that \(B\) requires to fill up to a particular common height. Then the correct statement among the following is:

1. pressure on the base area of vessels \(A\) and \(B\) is same.

2. pressure on the base area of vessels \(A\) and \(B\) is not same.

3. both vessels \(A\) and \(B\) weigh the same.

4. vessel \(B\) weighs twice that of \(A\).

1. pressure on the base area of vessels \(A\) and \(B\) is same.

2. pressure on the base area of vessels \(A\) and \(B\) is not same.

3. both vessels \(A\) and \(B\) weigh the same.

4. vessel \(B\) weighs twice that of \(A\).

Subtopic: Â Pressure |

Â 68%

From NCERT

NEET - 2022

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

Hints

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

A barometer is constructed using a liquid (density = \(760~\text{kg/m}^3\)). What would be the height of the liquid column, when a mercury barometer reads \(76\) cm?

(density of mercury = \(13600~\text{kg/m}^3\))

1. | \(1.36\) m | 2. | \(13.6\) m |

3. | \(136\) m | 4. | \(0.76\) m |

Subtopic: Â Pressure |

Â 78%

From NCERT

NEET - 2020

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

Hints

Links

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

In a U-tube, as shown in the figure, the water and oil are in the left side and right side of the tube respectively. The height of the water and oil columns are \(15~\text{cm}\) and \(20~\text{cm}\) respectively. The density of the oil is: \(\left[\text{take}~\rho_{\text{water}}= 1000~\text{kg/m}^{3}\right]\)$$

1. \(1200~\text{kg/m}^{3}\)

2. \(750~\text{kg/m}^{3}\)

3. \(1000~\text{kg/m}^{3}\)

4. \(1333~\text{kg/m}^{3}\)

Subtopic: Â Pressure |

Â 86%

From NCERT

NEET - 2019

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

Hints

Links

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

A U-tube with both ends open to the atmosphere is partially filled with water. Oil, which is immiscible with water, is poured into one side until it stands at a level of \(10~\text{mm}\) above the water level on the other side. Meanwhile, the water rises by \(65~\text{mm}\) from its original level (see diagram). The density of the oil is:

** **

1. \(425~\text{kg m}^{-3}\)

2. \(800~\text{kg m}^{-3}\)

3. \(928~\text{kg m}^{-3}\)

4. \(650~\text{kg m}^{-3}\)

Subtopic: Â Pressure |

Â 72%

From NCERT

NEET - 2017

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

Hints

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

The heart of a man pumps \(5~\text{L}\) of blood through the arteries per minute at a pressure of \(150~\text{mm}\) of mercury. If the density of mercury is \(13.6\times10^{3}~\text{kg/m}^{3}\)$$ $\mathrm{and}{\mathrm{}}^{}$ \(g = 10~\text{m/s}^2\), then the power of the heart in watt is:

1. \(1.70\)

2. \(2.35\)

3. \(3.0\)

4. \(1.50\)

Subtopic: Â Pressure |

Â 57%

From NCERT

NEET - 2015

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

Hints

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

The approximate depth of an ocean is \(2700~\text{m}\). The compressibility of water is \(45.4\times10^{-11}~\text{Pa}^{-1}\) and the density of water is \(10^{3}~\text{kg/m}^3\). What fractional compression of water will be obtained at the bottom of the ocean?

1. \(0.8\times 10^{-2}\)

2. \(1.0\times 10^{-2}\)

3. \(1.2\times 10^{-2}\)

4. \(1.4\times 10^{-2}\)

Subtopic: Â Pressure |

Â 69%

From NCERT

NEET - 2015

To view explanation, please take trial in the course.

NEET 2025 - Target Batch

Hints

Links

To view explanation, please take trial in the course.

NEET 2025 - Target Batch