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PHXI02:UNITS AND MEASUREMENTS

367597 Assertion :
One radian is the angle subtended at the centre of a circle by an arc equal in the length to the radius of the circle.
Reason :
Radian is the unit of distance.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

PHXI02:UNITS AND MEASUREMENTS

367598 The damping force of an oscillator is directly proportional to the velocity. The unit of constant of proportionality is

1

k g m s^{- 1}

2

k g s^{- 1}

3

k g m s^{- 2}

4

k g - s

Explanation:

Given, damping force $\propto$ velocity
or $F \propto v$
$\Rightarrow F = k v$
where $k$ is the proportionality constant
$\Rightarrow [k] = \frac{[F]}{[v]} = \frac{k g . m / s^{2}}{m / s} = \frac{k g}{s} = k g s^{- 1}$

MHTCET - 2020

PHXI02:UNITS AND MEASUREMENTS

367599 SI unit of permittivity is

1

C^{2} m^{2} N^{2}

2

C^{2} m^{- 2} N^{- 1}

3

C^{2} m^{2} N^{- 1}

4

C^{- 1} m^{2} N^{- 2}

Explanation:

From Coulomb's law,
$F = \frac{1}{4 π ε_{0}} \frac{q_{1} q_{2}}{r^{2}}$
or $ε_{0} = \frac{q_{1} q_{2}}{4 π F r^{2}}$
$∴$ Unit of $ε_{0}$ (permittivity)
$= \frac{C^{2}}{N m^{2}} = C^{2} m^{- 2} N^{- 1}$

AIIMS - 2012

PHXI02:UNITS AND MEASUREMENTS

367600 Poise' is the

1 C.G.S. unit of Surface tension

2 C.G.S. unit of Viscosity

3 M.K.S. unit of Viscosity

4 M.K.S. unit of Surface energy

PHXI02:UNITS AND MEASUREMENTS

367601 In the following, the one which is not a physical quantity is

1 Power

2 Momentum

3 Latent heat

4 Radian

PHXI02:UNITS AND MEASUREMENTS

367597 Assertion :
One radian is the angle subtended at the centre of a circle by an arc equal in the length to the radius of the circle.
Reason :
Radian is the unit of distance.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

PHXI02:UNITS AND MEASUREMENTS

367598 The damping force of an oscillator is directly proportional to the velocity. The unit of constant of proportionality is

1

k g m s^{- 1}

2

k g s^{- 1}

3

k g m s^{- 2}

4

k g - s

Explanation:

Given, damping force $\propto$ velocity
or $F \propto v$
$\Rightarrow F = k v$
where $k$ is the proportionality constant
$\Rightarrow [k] = \frac{[F]}{[v]} = \frac{k g . m / s^{2}}{m / s} = \frac{k g}{s} = k g s^{- 1}$

MHTCET - 2020

PHXI02:UNITS AND MEASUREMENTS

367599 SI unit of permittivity is

1

C^{2} m^{2} N^{2}

2

C^{2} m^{- 2} N^{- 1}

3

C^{2} m^{2} N^{- 1}

4

C^{- 1} m^{2} N^{- 2}

Explanation:

From Coulomb's law,
$F = \frac{1}{4 π ε_{0}} \frac{q_{1} q_{2}}{r^{2}}$
or $ε_{0} = \frac{q_{1} q_{2}}{4 π F r^{2}}$
$∴$ Unit of $ε_{0}$ (permittivity)
$= \frac{C^{2}}{N m^{2}} = C^{2} m^{- 2} N^{- 1}$

AIIMS - 2012

PHXI02:UNITS AND MEASUREMENTS

367600 Poise' is the

1 C.G.S. unit of Surface tension

2 C.G.S. unit of Viscosity

3 M.K.S. unit of Viscosity

4 M.K.S. unit of Surface energy

PHXI02:UNITS AND MEASUREMENTS

367601 In the following, the one which is not a physical quantity is

1 Power

2 Momentum

3 Latent heat

4 Radian

PHXI02:UNITS AND MEASUREMENTS

367597 Assertion :
One radian is the angle subtended at the centre of a circle by an arc equal in the length to the radius of the circle.
Reason :
Radian is the unit of distance.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

PHXI02:UNITS AND MEASUREMENTS

367598 The damping force of an oscillator is directly proportional to the velocity. The unit of constant of proportionality is

1

k g m s^{- 1}

2

k g s^{- 1}

3

k g m s^{- 2}

4

k g - s

Explanation:

Given, damping force $\propto$ velocity
or $F \propto v$
$\Rightarrow F = k v$
where $k$ is the proportionality constant
$\Rightarrow [k] = \frac{[F]}{[v]} = \frac{k g . m / s^{2}}{m / s} = \frac{k g}{s} = k g s^{- 1}$

MHTCET - 2020

PHXI02:UNITS AND MEASUREMENTS

367599 SI unit of permittivity is

1

C^{2} m^{2} N^{2}

2

C^{2} m^{- 2} N^{- 1}

3

C^{2} m^{2} N^{- 1}

4

C^{- 1} m^{2} N^{- 2}

Explanation:

From Coulomb's law,
$F = \frac{1}{4 π ε_{0}} \frac{q_{1} q_{2}}{r^{2}}$
or $ε_{0} = \frac{q_{1} q_{2}}{4 π F r^{2}}$
$∴$ Unit of $ε_{0}$ (permittivity)
$= \frac{C^{2}}{N m^{2}} = C^{2} m^{- 2} N^{- 1}$

AIIMS - 2012

PHXI02:UNITS AND MEASUREMENTS

367600 Poise' is the

1 C.G.S. unit of Surface tension

2 C.G.S. unit of Viscosity

3 M.K.S. unit of Viscosity

4 M.K.S. unit of Surface energy

PHXI02:UNITS AND MEASUREMENTS

367601 In the following, the one which is not a physical quantity is

1 Power

2 Momentum

3 Latent heat

4 Radian

PHXI02:UNITS AND MEASUREMENTS

367597 Assertion :
One radian is the angle subtended at the centre of a circle by an arc equal in the length to the radius of the circle.
Reason :
Radian is the unit of distance.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

PHXI02:UNITS AND MEASUREMENTS

367598 The damping force of an oscillator is directly proportional to the velocity. The unit of constant of proportionality is

1

k g m s^{- 1}

2

k g s^{- 1}

3

k g m s^{- 2}

4

k g - s

Explanation:

Given, damping force $\propto$ velocity
or $F \propto v$
$\Rightarrow F = k v$
where $k$ is the proportionality constant
$\Rightarrow [k] = \frac{[F]}{[v]} = \frac{k g . m / s^{2}}{m / s} = \frac{k g}{s} = k g s^{- 1}$

MHTCET - 2020

PHXI02:UNITS AND MEASUREMENTS

367599 SI unit of permittivity is

1

C^{2} m^{2} N^{2}

2

C^{2} m^{- 2} N^{- 1}

3

C^{2} m^{2} N^{- 1}

4

C^{- 1} m^{2} N^{- 2}

Explanation:

From Coulomb's law,
$F = \frac{1}{4 π ε_{0}} \frac{q_{1} q_{2}}{r^{2}}$
or $ε_{0} = \frac{q_{1} q_{2}}{4 π F r^{2}}$
$∴$ Unit of $ε_{0}$ (permittivity)
$= \frac{C^{2}}{N m^{2}} = C^{2} m^{- 2} N^{- 1}$

AIIMS - 2012

PHXI02:UNITS AND MEASUREMENTS

367600 Poise' is the

1 C.G.S. unit of Surface tension

2 C.G.S. unit of Viscosity

3 M.K.S. unit of Viscosity

4 M.K.S. unit of Surface energy

PHXI02:UNITS AND MEASUREMENTS

367601 In the following, the one which is not a physical quantity is

1 Power

2 Momentum

3 Latent heat

4 Radian

PHXI02:UNITS AND MEASUREMENTS

367597 Assertion :
One radian is the angle subtended at the centre of a circle by an arc equal in the length to the radius of the circle.
Reason :
Radian is the unit of distance.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

PHXI02:UNITS AND MEASUREMENTS

367598 The damping force of an oscillator is directly proportional to the velocity. The unit of constant of proportionality is

1

k g m s^{- 1}

2

k g s^{- 1}

3

k g m s^{- 2}

4

k g - s

Explanation:

Given, damping force $\propto$ velocity
or $F \propto v$
$\Rightarrow F = k v$
where $k$ is the proportionality constant
$\Rightarrow [k] = \frac{[F]}{[v]} = \frac{k g . m / s^{2}}{m / s} = \frac{k g}{s} = k g s^{- 1}$

MHTCET - 2020

PHXI02:UNITS AND MEASUREMENTS

367599 SI unit of permittivity is

1

C^{2} m^{2} N^{2}

2

C^{2} m^{- 2} N^{- 1}

3

C^{2} m^{2} N^{- 1}

4

C^{- 1} m^{2} N^{- 2}

Explanation:

From Coulomb's law,
$F = \frac{1}{4 π ε_{0}} \frac{q_{1} q_{2}}{r^{2}}$
or $ε_{0} = \frac{q_{1} q_{2}}{4 π F r^{2}}$
$∴$ Unit of $ε_{0}$ (permittivity)
$= \frac{C^{2}}{N m^{2}} = C^{2} m^{- 2} N^{- 1}$

AIIMS - 2012

PHXI02:UNITS AND MEASUREMENTS

367600 Poise' is the

1 C.G.S. unit of Surface tension

2 C.G.S. unit of Viscosity

3 M.K.S. unit of Viscosity

4 M.K.S. unit of Surface energy

PHXI02:UNITS AND MEASUREMENTS

367601 In the following, the one which is not a physical quantity is

1 Power

2 Momentum

3 Latent heat

4 Radian

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