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

Subtopic:  Dimensions |
52%
From NCERT
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Volt/metre is the unit of

(1) Potential

(2) Work

(3) Force

(4) Electric field intensity

Subtopic:  Dimensions |
65%
From NCERT
PMT - 1984
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The unit of self inductance of a coil is

(2) Henry

(3) Weber

(4) Tesla

Subtopic:  Dimensions |
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) $m/{\mathrm{sec}}^{3}$

Subtopic:  Dimensions |
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

Subtopic:  Dimensions |
52%
From NCERT
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Which of the following represents a volt :

(1) Joule/second

(2) Watt/Ampere

(3) Watt/Coulomb

(4) Coulomb/Joule

Subtopic:  Dimensions |
54%
PMT - 1990
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$Kilowatt-hour$ is a unit of

(1) Electrical charge

(2) Energy

(3) Power

(4) Force

Subtopic:  Dimensions |
56%
From NCERT
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In which of the following systems of the unit, Weber is the unit of magnetic flux?

(1) CGS

(2) MKS

(3) SI

(4) None of these

Subtopic:  Dimensions |
59%
From NCERT
PMT - 1993
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