$Erg \cdot m^{-1}$ can be the unit of measure for

  • A
    Force
  • B
    Momentum
  • C
    Power
  • D
    Acceleration

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Similar Questions

Match the physical quantities in List-$I$ with their dimensional formulas in terms of mass $(M)$, length $(L)$, time $(T)$ and electric current $(A)$ given in List-$II$.
List-$I$List-$II$
$(a)$ Torque$(i)$ $[M^{-1}L^{-2}T^4A^2]$
$(b)$ Gravitational constant(ii) $[M^1L^2T^{-1}]$
$(c)$ Capacitance(iii) $[M^{-1}L^3T^{-2}]$
$(d)$ Planck's constant(iv) $[M^1L^2T^{-2}]$

$Assertion$: In the measurement of physical quantities,direct and indirect methods are used.
$Reason$: The accuracy and precision of measuring instruments,along with errors in measurements,should be taken into account while expressing the result.

The two principal thrusts in physics are

Match the $\text{LIST-I}$ with $\text{LIST-II}$:
$\text{LIST-I}$ $\text{LIST-II}$
$A$. Boltzmann constant $I$. $ML^2 T^{-1}$
$B$. Coefficient of viscosity $II$. $MLT^{-3} K^{-1}$
$C$. Planck's constant $III$. $ML^2 T^{-2} K^{-1}$
$D$. Thermal conductivity $IV$. $ML^{-1} T^{-1}$

Choose the correct answer from the options given below:

The diameter of a wire measured by a screw gauge of least count $0.001 \text{ cm}$ is $0.08 \text{ cm}$. The length measured by a scale of least count $0.1 \text{ cm}$ is $150 \text{ cm}$. When a weight of $100 \text{ N}$ is applied to the wire, the extension in length is $0.5 \text{ cm}$, measured by a micrometer of least count $0.001 \text{ cm}$. The error in the measured Young's modulus is $\alpha \times 10^9 \text{ N/m}^2$. The value of $\alpha$ is . . . . . . . (Ignore the contribution of the load to Young's modulus error calculation)

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