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What method is commonly used for depreciating an asset after an extension has been added?

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Important Questions on Units and Measurements

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Time

(T)

, velocity

(C)

and angular momentum

(h)

are chosen as fundamental quantities instead of mass, length and time. In terms of these, the dimensions of mass would be:

MEDIUM

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Expression for time in terms of

G

(universal gravitational constant),

h

(Planck constant) and

c

(speed of light) is proportional to:

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The potential energy of a system increases if work is done

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Locus of the centre of rolling circle in a plane will be

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The unit of electric permittivity is

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

. Find the dimensions of electric permittivity

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensions of potential are the same as that of

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensional formula of kinetic energy is:-

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

If the velocity

v (i s {c m s}^{- 1})

of a particle is given in terms of

t

(in second) by the relation

v = a t + \frac{b}{t + c}

then, the dimensions of

a, b a n d c

are

\begin{matrix} a & b & c \\ a) [L] & [LT] & [T^{2}] \\ b) [L^{2}] & [T] & [{LT}^{- 2}] \\ c) [{LT}^{2}] & [LT] & [L] \\ d) [{LT}^{- 1}] & [L] & [T] \end{matrix}

MEDIUM

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Check that the ratio

k e^{2} / G m_{e} m_{p}

is dimensionless. Look up a table of physical constants and determine the value of this ratio. What does the ratio signify?

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensional formula of action

= (energy \times time)

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Electric displacement is given by

D = ε E

Here,

ε

= electric permittivity

E = electric field strength

Find the dimensions of electric displacement

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Which of the following pairs does not have similar dimensions?

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensional formula of

\frac{1}{μ_{0} ε_{0}}

is .............

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensions of Planck's constant are

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Select the dimensional formula of

\frac{B^{2}}{2 μ_{0}}

. Here

B

is the magnetic field and

μ_{0}

is the permeability of the free space.

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensions of physical quantity X in the equation Force = X/Density is given by.

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

What are dimensions of

\frac{E}{B}

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

The dimensional formula for inductance is

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Solar constant is defined as energy received by earth per

c m^{2}

per minute. Find the dimensions of solar constant

EASY

Physics>Mechanics>Units and Measurements>Dimensional Analysis and Its Applications

Match the following.

$A .$	Angular momentum	1. $[M^{- 1} L^{2} T^{- 2}]$
$B .$	Torque	2. $[M^{1} T^{- 2}]$
$C .$	Gravitational constant	3. $[M^{1} L^{2} T^{- 2}]$
$D .$	Tension	4. $[M^{1} L^{2} T^{- 1}]$

What method is commonly used for depreciating an asset after an extension has been added?

Important Questions on Units and Measurements

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