Physics

# Pick out  the two vector quantities in the following list :Temperature pressure, Impulse, time, power, total path length, energy, and charge.

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Subjective Medium Published on 18th 08, 2020
Questions 244531
Subjects 8
Chapters 125
Enrolled Students 199

#### Realted Questions

Q1 Single Correct Medium
Relative density of a metal may be found with the help of spring balance. In air the spring balance reads $(5.00\pm 0.05)$ N and in water it reads $(4.00\pm 0.05)$N. Relative density would be:
• A. $(5.00\pm 0.05)N$
• B. $(5.00\pm$ 11%)
• C. $(5.00\pm 0.10)$
• D. $(5.00\pm$ 6%)

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q2 Subjective Medium
In the gas equation, $(P +\dfrac{a}{V^2}) (V - b) = RT$ , where P is pressure, V is volume, R is gas constant and T is temperature. Calculate the dimensional formula of a and b.

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q3 Single Correct Medium
Pressure depends on distance as  $p=\dfrac{\alpha }{\beta }exp\left ( \dfrac{-\alpha z}{k\theta } \right )$, where $\alpha, \beta$ are constants, $z$ is distance, $k$ is Boltzmann's constant and $\theta$ is temperature. The dimension of $\beta$ are:
• A. $\left [ M^{0} L^{0}T^{0}\right ]$
• B. $\left [ M^{-1} L^{-1}T^{-1}\right ]$
• C. $\left [ M^{0} L^{2}T^{0}\right ]$
• D. $\left [ M^{-1} L^{-1}T^{2}\right ]$

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q4 Single Correct Medium
If ${ \mu }_{ 0 }$ be the permeability and ${ \varepsilon }_{ 0 }$ be the permittivity of a medium, then its refractive index is given by
• A. $\dfrac { 1 }{ \sqrt { { { \mu }_{ 0 }\varepsilon }_{ 0 } } }$
• B. $\dfrac { 1 }{ { { { \mu }_{ 0 }\varepsilon }_{ 0 } } }$
• C. ${ \sqrt { { { \mu }_{ 0 }\varepsilon }_{ 0 } } }$
• D. None of these

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020

Q5 Single Correct Medium
Light years is the unit of:
• A. time
• B. length
• C. mass
• D. none of these

Asked in: Physics - Units and Measurement

1 Verified Answer | Published on 18th 08, 2020