Which of the following is smallest unit

Important Questions on Physical World and Measurement

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 18

Which relation is wrong?

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 19

Which of the following system of units is not based on units of mass, length and time alone?

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 20

Which of the following quantity is unit less?

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 21

The ratio of one micron to one nanometer is

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 22

Temperature can be expressed as a derived quantity in terms of which of the following quantities ?

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 23

If dimensions of critical velocity, $v_{\mathrm{c}}$ of a liquid flowing through a tube are expressed as $\left[{\mathrm{\eta }}^{\mathrm{x}}{\mathrm{\rho }}^{\mathrm{y}}{r}^{\mathrm{z}}\right]$, where, $\mathrm{\eta },\mathrm{ }\mathrm{\rho }$ and $r$ are the coefficient of viscosity of liquid, density of liquid and radius of the tube, respectively, then, the values of $x$, $y$ and $\text{z}$ are given by

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 24

Dimension of $\frac{1}{{\mathrm{\mu }}_0{\mathrm{\epsilon }}_0}$, where symbols have their usual meanings, is,

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Physics Crash Course NEET>Chapter 1 - Physical World and Measurement>Level 1>Q 25

The force acting on a particle is $5 \mathrm{N}$. If the units of length and time are doubled and the unit of mass is halved then, the numerical value of force, in the new system, will be,