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1.

 Parsec is the unit of A.Distance B.Time C.Intensity of light D.Magnetic flux

Explanation not available for this question.

2.

 Which pair is wrong ? A.Pressure - Barometer B.Relative density - Pyrometer C.Temperature - Thermometer D.Earthquake - Seismograph

A hydrometer is an instrument used to measure the relative density.
A pyrometer is a type of thermometer used to measure high temperatures.

3.

 Which of the following pairs of physical quantities has the same dimensions ? A.Work and Power B.Momentum and energy C.Force and Power D.Work and Energy

NA

4.

 Maxwell is the unit of A.Permeability B.Magnetic flux C.Magnetic susceptibility D.Intensity of magnetization

NA

5.

 Which of the following physical quantity is dimensionless ? A.Strain B.Angle C.Specific gravity D.All of these

NA

6.

 Potential is measured in A.Watt B.Joule C.Joule/coulomb D.Newton-second

NA

7.

 Which of the following is not matched ? A.Decibel - Unit of sound B.Horse power - Unit of power C.Nautical mile - Unit of distance D.Celsius - Unit of heat

NA

8.

 The most suitable unit for expressing nuclear radius is ? A.Micron B.Nanometer C.Fermi D.Angstrom

NA

9.

 Which of the following is not the unit of time ? A.Micro second B.Parallactic second C.Leap year D.Solar day

NA

10.

 Which of the following physical quantities have the same dimensions ? A.Momentum and Impulse B.Force constant and Moment of inertia C.Energy and Angular momentum D.Power and Young's modulus

NA

11.

 One light year is approximately equal to A.1011 km B.1015 km C.1016 km D.1018 km

NA

12.

 Consider the physical quantities 1. Electronics 2. Work 3. Temperature 4. Density Which of the above are scalar quantities ? A.1, 2 and 3 B.1, 4 and 3 C.3, 4 and 2 D.1, 2, 3 and 4

NA

13.

 Masses of stars and galaxies are usually expressed in terms of A.Neutron mass B.Earth mass C.Solar mass D.Lunar mass

NA

14.

 Consider the physical quantities 1. Displacement 2. Torque 3. Current density 4. Linear momentum Which of the above are vector quantities ? A.3, 4 and 2 B.1, 4 and 3 C.1, 2 and 3 D.1, 2, 3 and 4

NA

15.

 Unit of resistance is A.volt x ampere B.volt² x ampere C.volt/ampere D.ampere/volt

NA