# Unit of power is: (1) Kilowatt (2) Kilowatt-hour (3) Dyne (4) Joule

Subtopic:  Dimensions |
55%
From NCERT
PMT - 1971
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The density of wood is $0.5gm/cc$ in the CGS system of units. The corresponding value in MKS units is :

(1) 500

(2) 5

(3) 0.5

(4) 5000

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60%
From NCERT
PMT - 1983
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Which is the correct unit for measuring nuclear radii

(1) Micron

(2) Millimetre

(3) Angstrom

(4) Fermi

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54%
From NCERT
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Mach number is equal to one when velocity of object is equal to:

(1) Velocity of light

(2) Velocity of sound $\left(332\text{\hspace{0.17em}\hspace{0.17em}}m/\mathrm{sec}\right)$

(3) $1\text{\hspace{0.17em}\hspace{0.17em}}km/\mathrm{sec}$

(4) $1\text{\hspace{0.17em}}m/\mathrm{sec}$

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52%
From NCERT
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Volt/metre is the unit of

(1) Potential

(2) Work

(3) Force

(4) Electric field intensity

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65%
From NCERT
PMT - 1984
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The unit of self inductance of a coil is

(2) Henry

(3) Weber

(4) Tesla

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63%
From NCERT
PMT - 1983
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Henry/ohm can be expressed in

(1) Second

(2) Coulomb

(3) Mho

(4) Metre

Subtopic:  Dimensions |
PMT - 1987
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The velocity of a particle depends upon as $v=a+bt+c{t}^{2}$; if the velocity is in $m/\mathrm{sec}$, the unit of a will be

(1) $m/\mathrm{sec}$

(2) $m/{\mathrm{sec}}^{2}$

(3) ${m}^{2}/\mathrm{sec}$

(4) $m/{\mathrm{sec}}^{3}$

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75%
From NCERT
PMT - 1990
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One million electron volt $\left(1\text{\hspace{0.17em}}MeV\right)$ is equal to

(1) ${10}^{5}eV$

(2) ${10}^{6}eV$

(3) ${10}^{4}eV$

(4) ${10}^{7}eV$

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74%
From NCERT
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$Erg-{m}^{-1}$ can be the unit of measure for

(1) Force

(2) Momentum

(3) Power

(4) Acceleration

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52%
From NCERT
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