Physics

# Fill in the blanksThe volume of an irregular solid is determined by the method of displacement of liquid.

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The volume of an irregular solid is determined by the method of displacement of liquid.

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Subjective Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
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#### Realted Questions

Q1 Single Correct Medium
A thin wire has a length of $21.7 \ cm$ and radius $0.46\ mm$. The volume of the wire to correct significant figures is :
• A. $1.4\ {cm}^{3}$
• B. $0.14\ {cm}^{3}$
• C. $0.14\ {mm}^{3}$
• D. None of these

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Single Correct Medium
The time period of a simple pendulum is given by the relation $T=2\pi \sqrt{\cfrac{L}{g}}$. The measured values of length $L$ and period of $50$ oscillations are $(20\pm 0.1)$ $cm$ and $(50 \pm 1)$ $s$ respectively. The percentage error in the determination of $g$ is
• A. $2.5\%$
• B. $4.5\%$
• C. $6\%$
• D. $7.5\%$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
A physical quantity $P$ is given by the relation, $P={P}_{0}{e}^{(-\alpha {t}^{2})}$. If $t$ denotes the time, the dimensions of constant $\alpha$ are
• A. $[T]$
• B. $[{T}^{2}]$
• C. $[{T}^{-1}]$
• D. $[{T}^{-2}]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Hard
Consider a vessel filled with carbodioxide at $27^{\circ}C$ and $5$ atmospheric pressure. A part of the gas is removed at $27^{\circ}C$ and it fills a $3L$ container at $1\ atm$ and the pressure drops to $3.5\ atm$ in the vessel. The volume of the vessel is:
• A. $1\ L$
• B. $5.8\ L$
• C. $3.5\ L$
• D. $2\ L$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
In the relation $V=\dfrac { \pi }{ 8 } \dfrac { { Pr }^{ 4 } }{ tl }$, $P$ is pressure, $r$ is the radius, $t$ is time and $l$ is length. The dimensions of $V$ are:
• A. ${ M }^{ 0 }{ L }^{ 3 }{ T }^{ 0 }$
• B. ${ M }^{ 1 }{ L }^{ 3 }{ T }^{ -1}$
• C. ${ M }^{ 0 }{ L }^{ -3 }{ T }^{ -1}$
• D. ${ M }^{ 1 }{ L }^{ 2 }{ T }^{-3}$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020