Tesla is a unit for measuring
(1) Magnetic moment
(2) Magnetic induction & Intensity
(3) Magnetic field lines
(4) Magnetic pole strength
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
Ampere - hour is a unit of
(1) Quantity of electricity
(2) Strength of electric current
(3) Power
(4) Energy
The unit of specific resistance is
(1) Ohm / cm2
(2) Ohm / cm
(3) Ohm - cm
(4) (Ohm - cm)-1
The binding energy of a nucleon in a nucleus is of the order of a few
(1) eV
(2) Ergs
(3) MeV
(4) Volts
Parsec is a unit of :
(1) Distance
(2) Velocity
(3) Time
(4) Angle
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. | \((n_1+u_1)=(n_2+u_2)\) |
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