**41. Which
of the following pairs of physical quantities have identical dimensions?**
A. Moment
of a force and Angular Momentum

**B. work and Energy**

C. Torque
and Energy

D. None
of these

**42. The
quantity e**** **^{2}**/hc , where 'e' is
the electronic charge 'h' is the Planck's constant and 'c' is the velocity of
light**

A. has
the dimension of mass

B. has
the dimension of length

C. has
the dimension of time

**D. is dimensionless**

**43. If
the velocity of light c, the constant of gravitation G and Planck's constant
have chosen as fundamental units , the dimensions of length in the new system
is**

A. C ^{-13/2} G ^{1/2} h

B. C ^{-1/2} G ^{-1/2} h

**C. C**** **^{-5/2}** ****h**

D. none
of these

**44. State
the physical quantity represented by L**** **^{2}** ****T**^{2}** ****0**^{-1}** ****where 0 is represents
the unit temperature**

A. Thermal
capacity of the body

B. Thermal
conductivity

C. Specific
thermal capacity

**D. specific latent heat of vaporization**

**45. Correct
unit of capacitance in SI system is**

A. Nf

B. Pf

**C. F**

D. Uf

**46. The
correct unit of inductance in SI system is**

A. Lx

B. Lm

**C. H**

D. Wb

**47. The
correct unit of magnetic flux in SI system is**

A. Lumen

B. Tesla(T)

C. Henry(H)

**D. Weber(wb)**

**48. The
correct unit of illuinance in SI system is**

A. Lumen

B. Candela

**C. Lux**

D. Weber

**49. In
SI system the unit of specific heat capacity is**

A. gm
cm^{2} Sec^{-1}

**B. J.kg**^{-1}** ****.K**** **^{-1}

C. W.m^{-1} K^{-1}

D. W.sr ^{-1}

**50. In
SI system the correct unit of mass is**

A. Ton

**B. Kg**

C. G

D. Mg

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