B Parsec is an astronomical unit of length equal to the distance at which a baseline of one astronomical unit subtends an angle of one second of arc. 1 Parsec \(=3.08 \times 10^{16} \mathrm{~m}\) \(=3.26\) light year
AIIMS-2005
Units and Measurements
139481
Which one of the following is not a unit of Young's modulus?
1 \(\mathrm{Nm}^{-1}\)
2 \(\mathrm{Nm}^{-2}\)
3 dyne \(\mathrm{cm}^{-2}\)
4 mega pascal
Explanation:
A \(\mathrm{Nm}^{-1}\) is not a unit of Young's modulus'. Young's modulus \((\mathrm{y})=\frac{\text { Stress }}{\text { Strain }}=\frac{\mathrm{N}}{\mathrm{m}^{2}}\) CGS unit of young modulus is dyne \(\mathrm{cm}^{-2}\) and represents the units of young's modulus in \(\mathrm{Nm}^{-2}\) and Mega Pascal.
Karnataka CET-2005
Units and Measurements
139485
Which of the following is not a unit of energy?
1 Ws
2 \(\mathrm{kg} \mathrm{m} \mathrm{s}^{-1}\)
3 \(\mathrm{N} \mathrm{m}\)
4 \(\mathrm{kg} \mathrm{m}^{2} \mathrm{~s}^{-2}\)
Explanation:
B Energy \(=\) Force \(\times\) distance \(=\mathrm{N}-\mathrm{m}=\mathrm{kg} \cdot \frac{\mathrm{m}}{\mathrm{s}^{2}} \cdot \mathrm{m}\) \(=\frac{\mathrm{kg} \cdot \mathrm{m}^{2}}{\mathrm{~s}^{2}}=\frac{\mathrm{J} \cdot \mathrm{s}}{\mathrm{s}}=\mathrm{W} \cdot \mathrm{s}\) Energy \(=\) N.m, W.s, Kg.m \({ }^{2} . s^{-2}\) Hence, \(\mathrm{kg} \cdot \mathrm{m} . \mathrm{s}^{-1}\) is not a unit of energy.
A The SI unit of magnetic permeability is \(\mathrm{B} =\frac{\mu_{0}}{4 \pi} \frac{\mathrm{Id} l \sin \theta}{\mathrm{r}^{2}}\) \(\mu_{0} =\frac{\mathrm{B}(4 \pi) \mathrm{r}^{2}}{\mathrm{Id} l \sin \theta}=\frac{\mathrm{Wb}}{\mathrm{m}^{2}} \times \frac{\mathrm{m}^{2}}{\mathrm{~A} \times \mathrm{m}}\) \(\mu_{0} =\mathrm{WbA}^{-1} \mathrm{~m}^{-1}\)
C The unit of thermal conductivity \((k)=\frac{Q L}{A \Delta T}\) Unit of \(k=\frac{M}{M^{2} \times K} \times\) watt \(\mathrm{k}=\mathrm{Wm}^{-1} \mathrm{~K}^{-1}\)
B Parsec is an astronomical unit of length equal to the distance at which a baseline of one astronomical unit subtends an angle of one second of arc. 1 Parsec \(=3.08 \times 10^{16} \mathrm{~m}\) \(=3.26\) light year
AIIMS-2005
Units and Measurements
139481
Which one of the following is not a unit of Young's modulus?
1 \(\mathrm{Nm}^{-1}\)
2 \(\mathrm{Nm}^{-2}\)
3 dyne \(\mathrm{cm}^{-2}\)
4 mega pascal
Explanation:
A \(\mathrm{Nm}^{-1}\) is not a unit of Young's modulus'. Young's modulus \((\mathrm{y})=\frac{\text { Stress }}{\text { Strain }}=\frac{\mathrm{N}}{\mathrm{m}^{2}}\) CGS unit of young modulus is dyne \(\mathrm{cm}^{-2}\) and represents the units of young's modulus in \(\mathrm{Nm}^{-2}\) and Mega Pascal.
Karnataka CET-2005
Units and Measurements
139485
Which of the following is not a unit of energy?
1 Ws
2 \(\mathrm{kg} \mathrm{m} \mathrm{s}^{-1}\)
3 \(\mathrm{N} \mathrm{m}\)
4 \(\mathrm{kg} \mathrm{m}^{2} \mathrm{~s}^{-2}\)
Explanation:
B Energy \(=\) Force \(\times\) distance \(=\mathrm{N}-\mathrm{m}=\mathrm{kg} \cdot \frac{\mathrm{m}}{\mathrm{s}^{2}} \cdot \mathrm{m}\) \(=\frac{\mathrm{kg} \cdot \mathrm{m}^{2}}{\mathrm{~s}^{2}}=\frac{\mathrm{J} \cdot \mathrm{s}}{\mathrm{s}}=\mathrm{W} \cdot \mathrm{s}\) Energy \(=\) N.m, W.s, Kg.m \({ }^{2} . s^{-2}\) Hence, \(\mathrm{kg} \cdot \mathrm{m} . \mathrm{s}^{-1}\) is not a unit of energy.
A The SI unit of magnetic permeability is \(\mathrm{B} =\frac{\mu_{0}}{4 \pi} \frac{\mathrm{Id} l \sin \theta}{\mathrm{r}^{2}}\) \(\mu_{0} =\frac{\mathrm{B}(4 \pi) \mathrm{r}^{2}}{\mathrm{Id} l \sin \theta}=\frac{\mathrm{Wb}}{\mathrm{m}^{2}} \times \frac{\mathrm{m}^{2}}{\mathrm{~A} \times \mathrm{m}}\) \(\mu_{0} =\mathrm{WbA}^{-1} \mathrm{~m}^{-1}\)
C The unit of thermal conductivity \((k)=\frac{Q L}{A \Delta T}\) Unit of \(k=\frac{M}{M^{2} \times K} \times\) watt \(\mathrm{k}=\mathrm{Wm}^{-1} \mathrm{~K}^{-1}\)
NEET Test Series from KOTA - 10 Papers In MS WORD
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Units and Measurements
139480
"Parsec" is the unit of:
1 time
2 distance
3 frequency
4 angular acceleration
Explanation:
B Parsec is an astronomical unit of length equal to the distance at which a baseline of one astronomical unit subtends an angle of one second of arc. 1 Parsec \(=3.08 \times 10^{16} \mathrm{~m}\) \(=3.26\) light year
AIIMS-2005
Units and Measurements
139481
Which one of the following is not a unit of Young's modulus?
1 \(\mathrm{Nm}^{-1}\)
2 \(\mathrm{Nm}^{-2}\)
3 dyne \(\mathrm{cm}^{-2}\)
4 mega pascal
Explanation:
A \(\mathrm{Nm}^{-1}\) is not a unit of Young's modulus'. Young's modulus \((\mathrm{y})=\frac{\text { Stress }}{\text { Strain }}=\frac{\mathrm{N}}{\mathrm{m}^{2}}\) CGS unit of young modulus is dyne \(\mathrm{cm}^{-2}\) and represents the units of young's modulus in \(\mathrm{Nm}^{-2}\) and Mega Pascal.
Karnataka CET-2005
Units and Measurements
139485
Which of the following is not a unit of energy?
1 Ws
2 \(\mathrm{kg} \mathrm{m} \mathrm{s}^{-1}\)
3 \(\mathrm{N} \mathrm{m}\)
4 \(\mathrm{kg} \mathrm{m}^{2} \mathrm{~s}^{-2}\)
Explanation:
B Energy \(=\) Force \(\times\) distance \(=\mathrm{N}-\mathrm{m}=\mathrm{kg} \cdot \frac{\mathrm{m}}{\mathrm{s}^{2}} \cdot \mathrm{m}\) \(=\frac{\mathrm{kg} \cdot \mathrm{m}^{2}}{\mathrm{~s}^{2}}=\frac{\mathrm{J} \cdot \mathrm{s}}{\mathrm{s}}=\mathrm{W} \cdot \mathrm{s}\) Energy \(=\) N.m, W.s, Kg.m \({ }^{2} . s^{-2}\) Hence, \(\mathrm{kg} \cdot \mathrm{m} . \mathrm{s}^{-1}\) is not a unit of energy.
A The SI unit of magnetic permeability is \(\mathrm{B} =\frac{\mu_{0}}{4 \pi} \frac{\mathrm{Id} l \sin \theta}{\mathrm{r}^{2}}\) \(\mu_{0} =\frac{\mathrm{B}(4 \pi) \mathrm{r}^{2}}{\mathrm{Id} l \sin \theta}=\frac{\mathrm{Wb}}{\mathrm{m}^{2}} \times \frac{\mathrm{m}^{2}}{\mathrm{~A} \times \mathrm{m}}\) \(\mu_{0} =\mathrm{WbA}^{-1} \mathrm{~m}^{-1}\)
C The unit of thermal conductivity \((k)=\frac{Q L}{A \Delta T}\) Unit of \(k=\frac{M}{M^{2} \times K} \times\) watt \(\mathrm{k}=\mathrm{Wm}^{-1} \mathrm{~K}^{-1}\)
B Parsec is an astronomical unit of length equal to the distance at which a baseline of one astronomical unit subtends an angle of one second of arc. 1 Parsec \(=3.08 \times 10^{16} \mathrm{~m}\) \(=3.26\) light year
AIIMS-2005
Units and Measurements
139481
Which one of the following is not a unit of Young's modulus?
1 \(\mathrm{Nm}^{-1}\)
2 \(\mathrm{Nm}^{-2}\)
3 dyne \(\mathrm{cm}^{-2}\)
4 mega pascal
Explanation:
A \(\mathrm{Nm}^{-1}\) is not a unit of Young's modulus'. Young's modulus \((\mathrm{y})=\frac{\text { Stress }}{\text { Strain }}=\frac{\mathrm{N}}{\mathrm{m}^{2}}\) CGS unit of young modulus is dyne \(\mathrm{cm}^{-2}\) and represents the units of young's modulus in \(\mathrm{Nm}^{-2}\) and Mega Pascal.
Karnataka CET-2005
Units and Measurements
139485
Which of the following is not a unit of energy?
1 Ws
2 \(\mathrm{kg} \mathrm{m} \mathrm{s}^{-1}\)
3 \(\mathrm{N} \mathrm{m}\)
4 \(\mathrm{kg} \mathrm{m}^{2} \mathrm{~s}^{-2}\)
Explanation:
B Energy \(=\) Force \(\times\) distance \(=\mathrm{N}-\mathrm{m}=\mathrm{kg} \cdot \frac{\mathrm{m}}{\mathrm{s}^{2}} \cdot \mathrm{m}\) \(=\frac{\mathrm{kg} \cdot \mathrm{m}^{2}}{\mathrm{~s}^{2}}=\frac{\mathrm{J} \cdot \mathrm{s}}{\mathrm{s}}=\mathrm{W} \cdot \mathrm{s}\) Energy \(=\) N.m, W.s, Kg.m \({ }^{2} . s^{-2}\) Hence, \(\mathrm{kg} \cdot \mathrm{m} . \mathrm{s}^{-1}\) is not a unit of energy.
A The SI unit of magnetic permeability is \(\mathrm{B} =\frac{\mu_{0}}{4 \pi} \frac{\mathrm{Id} l \sin \theta}{\mathrm{r}^{2}}\) \(\mu_{0} =\frac{\mathrm{B}(4 \pi) \mathrm{r}^{2}}{\mathrm{Id} l \sin \theta}=\frac{\mathrm{Wb}}{\mathrm{m}^{2}} \times \frac{\mathrm{m}^{2}}{\mathrm{~A} \times \mathrm{m}}\) \(\mu_{0} =\mathrm{WbA}^{-1} \mathrm{~m}^{-1}\)
C The unit of thermal conductivity \((k)=\frac{Q L}{A \Delta T}\) Unit of \(k=\frac{M}{M^{2} \times K} \times\) watt \(\mathrm{k}=\mathrm{Wm}^{-1} \mathrm{~K}^{-1}\)
B Parsec is an astronomical unit of length equal to the distance at which a baseline of one astronomical unit subtends an angle of one second of arc. 1 Parsec \(=3.08 \times 10^{16} \mathrm{~m}\) \(=3.26\) light year
AIIMS-2005
Units and Measurements
139481
Which one of the following is not a unit of Young's modulus?
1 \(\mathrm{Nm}^{-1}\)
2 \(\mathrm{Nm}^{-2}\)
3 dyne \(\mathrm{cm}^{-2}\)
4 mega pascal
Explanation:
A \(\mathrm{Nm}^{-1}\) is not a unit of Young's modulus'. Young's modulus \((\mathrm{y})=\frac{\text { Stress }}{\text { Strain }}=\frac{\mathrm{N}}{\mathrm{m}^{2}}\) CGS unit of young modulus is dyne \(\mathrm{cm}^{-2}\) and represents the units of young's modulus in \(\mathrm{Nm}^{-2}\) and Mega Pascal.
Karnataka CET-2005
Units and Measurements
139485
Which of the following is not a unit of energy?
1 Ws
2 \(\mathrm{kg} \mathrm{m} \mathrm{s}^{-1}\)
3 \(\mathrm{N} \mathrm{m}\)
4 \(\mathrm{kg} \mathrm{m}^{2} \mathrm{~s}^{-2}\)
Explanation:
B Energy \(=\) Force \(\times\) distance \(=\mathrm{N}-\mathrm{m}=\mathrm{kg} \cdot \frac{\mathrm{m}}{\mathrm{s}^{2}} \cdot \mathrm{m}\) \(=\frac{\mathrm{kg} \cdot \mathrm{m}^{2}}{\mathrm{~s}^{2}}=\frac{\mathrm{J} \cdot \mathrm{s}}{\mathrm{s}}=\mathrm{W} \cdot \mathrm{s}\) Energy \(=\) N.m, W.s, Kg.m \({ }^{2} . s^{-2}\) Hence, \(\mathrm{kg} \cdot \mathrm{m} . \mathrm{s}^{-1}\) is not a unit of energy.
A The SI unit of magnetic permeability is \(\mathrm{B} =\frac{\mu_{0}}{4 \pi} \frac{\mathrm{Id} l \sin \theta}{\mathrm{r}^{2}}\) \(\mu_{0} =\frac{\mathrm{B}(4 \pi) \mathrm{r}^{2}}{\mathrm{Id} l \sin \theta}=\frac{\mathrm{Wb}}{\mathrm{m}^{2}} \times \frac{\mathrm{m}^{2}}{\mathrm{~A} \times \mathrm{m}}\) \(\mu_{0} =\mathrm{WbA}^{-1} \mathrm{~m}^{-1}\)
C The unit of thermal conductivity \((k)=\frac{Q L}{A \Delta T}\) Unit of \(k=\frac{M}{M^{2} \times K} \times\) watt \(\mathrm{k}=\mathrm{Wm}^{-1} \mathrm{~K}^{-1}\)