# If the unit of length and force be increased four times, then the unit of energy is  1. Increased 4 times 2. Increased 8 times 3. Increased 16 times 4. Decreased 16 times

Subtopic:  Dimensions |
67%
From NCERT
PMT - 2005
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Ampere - hour is a unit of

(1) Quantity of electricity

(2) Strength of electric current

(3) Power

(4) Energy

Subtopic:  Dimensions |
54%
From NCERT
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The unit of specific resistance is

(1) Ohm / cm2

(2) Ohm / cm

(3) Ohm - cm

(4) (Ohm - cm)-1

Subtopic:  Dimensions |
52%
From NCERT
PMT - 1975
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The binding energy of a nucleon in a nucleus is of the order of a few

(1) eV

(2) Ergs

(3) MeV

(4) Volts

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55%
From NCERT
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Parsec is a unit of :

(1) Distance

(2) Velocity

(3) Time

(4) Angle

Subtopic:  Dimensions |
61%
From NCERT
AIIMS - 2005
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If $$u_1$$ and $$u_2$$ are the units selected in two systems of measurement and $$n_1$$ and $$n_2$$ are their numerical values, then:

 1 $$n_1u_1=n_2u_2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \$$ 2 $$n_1u_1+n_2u_2=0$$ 3 $$n_1n_2=u_1u_2$$ 4 $$(n_1+u_1)=(n_2+u_2)$$
Subtopic:  Dimensions |
85%
From NCERT
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eV is

(1) Same as one joule

(2) $1.6×{10}^{-19}J$

(3) 1 V

(4) $1.6×{10}^{-19}C$

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74%
From NCERT
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$1kWh=$

(1) $1000W$

(2) $36×{10}^{5}J$

(3) $1000J$

(4) $3600\text{\hspace{0.17em}}J$

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65%
From NCERT
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Universal time is based on :

(1) Rotation of the earth on its axis

(2) Earth's orbital motion around the Sun

(3) Vibrations of cesium atom

(4) Oscillations of quartz crystal

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From NCERT
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Unit of moment of inertia in MKS system

(1) $kg×c{m}^{2}$

(2) $kg/c{m}^{2}$

(3) $kg×{m}^{2}$

(4) $Joule×m$

Subtopic:  Dimensions |
67%
From NCERT
PMT - 1984
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