QBManager

Units and Measurements

139455 The SI unit of mechanical equivalent of heat is

1

J / cal

2 J-cal

3 cal. erg

4

erg / J

Explanation:

A Mechanical equivalent of heat, if the work is completely changed to the heat energy, then the some amount of heat is generated. Mathematically,
$J = \frac{W}{q}$
Here, $W =$ Amount of work required to generate heat $q =$ Amount of heat
$= \frac{Joule}{Calorie}$
So, SI unit of mechanical equivalent of heat is $J / cal$ .

CG PET- 2017

Units and Measurements

139456 Siemen is the SI unit for

1 electrical resistivity

2 electrical conductance

3 electrical permittivity

4 electrical capacitance

Explanation:

B Conductance is defined as
$Conductance = \frac{1}{Resistance}$
$= \frac{1}{ohm}$
$= (Ω)^{- 1} or siemen$
Hence siemen is the SI unit for electrical conductance.

EAMCET-1992

Units and Measurements

139463 The Bernoulli's equation may be written as: $P + \frac{1}{2} ρ v^{2} + h ρ g = K (a$ constant $)$ . The unit of $K / P$ is same as that of:

1 pressure

2 thrust

3 angle

4 none of the above

Explanation:

D In the given equation
$[K] = [P]$
$\Rightarrow [\frac{K}{P}] = [M^{0} L^{0} T^{0}]$
$\Rightarrow Dimensionless and has no units.$

SRMJEE - 2011

Units and Measurements

139464 The velocity of a particle depends upon $t$ as $v = A + B t + C t^{2}$ . If velocity is in $m / s$ , the unit of A will be

1

m / s

2

m / s^{2}

3

ms

4

m^{2} / s

Explanation:

A Given that, $v = A + Bt + {Ct}^{2}$
According to principle of homogeneity
Unit of $A =$ unit of $Bt =$ unit of ${Ct}^{2} =$ unit of $V$
Unit of $A =$ unit of $V$
Unit of $A = m / s$

SRMJEE - 2012

Units and Measurements

139466 Which of the following pairs of physical quantities may be represented in the same unit?

1 Heat and temperature

2 Temperature and mole

3 Heat and work

4 Specific heat and heat

MP PET-2012

Units and Measurements

139455 The SI unit of mechanical equivalent of heat is

1

J / cal

2 J-cal

3 cal. erg

4

erg / J

Explanation:

A Mechanical equivalent of heat, if the work is completely changed to the heat energy, then the some amount of heat is generated. Mathematically,
$J = \frac{W}{q}$
Here, $W =$ Amount of work required to generate heat $q =$ Amount of heat
$= \frac{Joule}{Calorie}$
So, SI unit of mechanical equivalent of heat is $J / cal$ .

CG PET- 2017

Units and Measurements

139456 Siemen is the SI unit for

1 electrical resistivity

2 electrical conductance

3 electrical permittivity

4 electrical capacitance

Explanation:

B Conductance is defined as
$Conductance = \frac{1}{Resistance}$
$= \frac{1}{ohm}$
$= (Ω)^{- 1} or siemen$
Hence siemen is the SI unit for electrical conductance.

EAMCET-1992

Units and Measurements

139463 The Bernoulli's equation may be written as: $P + \frac{1}{2} ρ v^{2} + h ρ g = K (a$ constant $)$ . The unit of $K / P$ is same as that of:

1 pressure

2 thrust

3 angle

4 none of the above

Explanation:

D In the given equation
$[K] = [P]$
$\Rightarrow [\frac{K}{P}] = [M^{0} L^{0} T^{0}]$
$\Rightarrow Dimensionless and has no units.$

SRMJEE - 2011

Units and Measurements

139464 The velocity of a particle depends upon $t$ as $v = A + B t + C t^{2}$ . If velocity is in $m / s$ , the unit of A will be

1

m / s

2

m / s^{2}

3

ms

4

m^{2} / s

Explanation:

A Given that, $v = A + Bt + {Ct}^{2}$
According to principle of homogeneity
Unit of $A =$ unit of $Bt =$ unit of ${Ct}^{2} =$ unit of $V$
Unit of $A =$ unit of $V$
Unit of $A = m / s$

SRMJEE - 2012

Units and Measurements

139466 Which of the following pairs of physical quantities may be represented in the same unit?

1 Heat and temperature

2 Temperature and mole

3 Heat and work

4 Specific heat and heat

MP PET-2012

Units and Measurements

139455 The SI unit of mechanical equivalent of heat is

1

J / cal

2 J-cal

3 cal. erg

4

erg / J

Explanation:

A Mechanical equivalent of heat, if the work is completely changed to the heat energy, then the some amount of heat is generated. Mathematically,
$J = \frac{W}{q}$
Here, $W =$ Amount of work required to generate heat $q =$ Amount of heat
$= \frac{Joule}{Calorie}$
So, SI unit of mechanical equivalent of heat is $J / cal$ .

CG PET- 2017

Units and Measurements

139456 Siemen is the SI unit for

1 electrical resistivity

2 electrical conductance

3 electrical permittivity

4 electrical capacitance

Explanation:

B Conductance is defined as
$Conductance = \frac{1}{Resistance}$
$= \frac{1}{ohm}$
$= (Ω)^{- 1} or siemen$
Hence siemen is the SI unit for electrical conductance.

EAMCET-1992

Units and Measurements

139463 The Bernoulli's equation may be written as: $P + \frac{1}{2} ρ v^{2} + h ρ g = K (a$ constant $)$ . The unit of $K / P$ is same as that of:

1 pressure

2 thrust

3 angle

4 none of the above

Explanation:

D In the given equation
$[K] = [P]$
$\Rightarrow [\frac{K}{P}] = [M^{0} L^{0} T^{0}]$
$\Rightarrow Dimensionless and has no units.$

SRMJEE - 2011

Units and Measurements

139464 The velocity of a particle depends upon $t$ as $v = A + B t + C t^{2}$ . If velocity is in $m / s$ , the unit of A will be

1

m / s

2

m / s^{2}

3

ms

4

m^{2} / s

Explanation:

A Given that, $v = A + Bt + {Ct}^{2}$
According to principle of homogeneity
Unit of $A =$ unit of $Bt =$ unit of ${Ct}^{2} =$ unit of $V$
Unit of $A =$ unit of $V$
Unit of $A = m / s$

SRMJEE - 2012

Units and Measurements

139466 Which of the following pairs of physical quantities may be represented in the same unit?

1 Heat and temperature

2 Temperature and mole

3 Heat and work

4 Specific heat and heat

MP PET-2012

Units and Measurements

139455 The SI unit of mechanical equivalent of heat is

1

J / cal

2 J-cal

3 cal. erg

4

erg / J

Explanation:

A Mechanical equivalent of heat, if the work is completely changed to the heat energy, then the some amount of heat is generated. Mathematically,
$J = \frac{W}{q}$
Here, $W =$ Amount of work required to generate heat $q =$ Amount of heat
$= \frac{Joule}{Calorie}$
So, SI unit of mechanical equivalent of heat is $J / cal$ .

CG PET- 2017

Units and Measurements

139456 Siemen is the SI unit for

1 electrical resistivity

2 electrical conductance

3 electrical permittivity

4 electrical capacitance

Explanation:

B Conductance is defined as
$Conductance = \frac{1}{Resistance}$
$= \frac{1}{ohm}$
$= (Ω)^{- 1} or siemen$
Hence siemen is the SI unit for electrical conductance.

EAMCET-1992

Units and Measurements

139463 The Bernoulli's equation may be written as: $P + \frac{1}{2} ρ v^{2} + h ρ g = K (a$ constant $)$ . The unit of $K / P$ is same as that of:

1 pressure

2 thrust

3 angle

4 none of the above

Explanation:

D In the given equation
$[K] = [P]$
$\Rightarrow [\frac{K}{P}] = [M^{0} L^{0} T^{0}]$
$\Rightarrow Dimensionless and has no units.$

SRMJEE - 2011

Units and Measurements

139464 The velocity of a particle depends upon $t$ as $v = A + B t + C t^{2}$ . If velocity is in $m / s$ , the unit of A will be

1

m / s

2

m / s^{2}

3

ms

4

m^{2} / s

Explanation:

A Given that, $v = A + Bt + {Ct}^{2}$
According to principle of homogeneity
Unit of $A =$ unit of $Bt =$ unit of ${Ct}^{2} =$ unit of $V$
Unit of $A =$ unit of $V$
Unit of $A = m / s$

SRMJEE - 2012

Units and Measurements

139466 Which of the following pairs of physical quantities may be represented in the same unit?

1 Heat and temperature

2 Temperature and mole

3 Heat and work

4 Specific heat and heat

MP PET-2012

Units and Measurements

139455 The SI unit of mechanical equivalent of heat is

1

J / cal

2 J-cal

3 cal. erg

4

erg / J

Explanation:

A Mechanical equivalent of heat, if the work is completely changed to the heat energy, then the some amount of heat is generated. Mathematically,
$J = \frac{W}{q}$
Here, $W =$ Amount of work required to generate heat $q =$ Amount of heat
$= \frac{Joule}{Calorie}$
So, SI unit of mechanical equivalent of heat is $J / cal$ .

CG PET- 2017

Units and Measurements

139456 Siemen is the SI unit for

1 electrical resistivity

2 electrical conductance

3 electrical permittivity

4 electrical capacitance

Explanation:

B Conductance is defined as
$Conductance = \frac{1}{Resistance}$
$= \frac{1}{ohm}$
$= (Ω)^{- 1} or siemen$
Hence siemen is the SI unit for electrical conductance.

EAMCET-1992

Units and Measurements

139463 The Bernoulli's equation may be written as: $P + \frac{1}{2} ρ v^{2} + h ρ g = K (a$ constant $)$ . The unit of $K / P$ is same as that of:

1 pressure

2 thrust

3 angle

4 none of the above

Explanation:

D In the given equation
$[K] = [P]$
$\Rightarrow [\frac{K}{P}] = [M^{0} L^{0} T^{0}]$
$\Rightarrow Dimensionless and has no units.$

SRMJEE - 2011

Units and Measurements

139464 The velocity of a particle depends upon $t$ as $v = A + B t + C t^{2}$ . If velocity is in $m / s$ , the unit of A will be

1

m / s

2

m / s^{2}

3

ms

4

m^{2} / s

Explanation:

A Given that, $v = A + Bt + {Ct}^{2}$
According to principle of homogeneity
Unit of $A =$ unit of $Bt =$ unit of ${Ct}^{2} =$ unit of $V$
Unit of $A =$ unit of $V$
Unit of $A = m / s$

SRMJEE - 2012

Units and Measurements

139466 Which of the following pairs of physical quantities may be represented in the same unit?

1 Heat and temperature

2 Temperature and mole

3 Heat and work

4 Specific heat and heat

MP PET-2012

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