Which of the following is a base quantity?
(a) Mass
(b) Length
(c) Time
(d) All of these
Which of the following is a derived quantity?
(a) Velocity
(b) Acceleration
(c) Force
(d) All of these
The standard chosen for the measurement of a base quantity should be ____________.
(a) Accessible
(b) Invariable
(c) Both of them
(d) None of these
The order of magnitude of diameter of a nucleus in meters is __________.
(a) 10^-15
(b) 10^-10
(c) 10^0
(d)10^10
The order of magnitude of diameter of an atom in meters is_______.
(a) 10^-20
(b) 10^-10
(c) 10^0
(d)10^10
The order of magnitude of height of a person in meters is _____________.
(a) 10^-10
(b) 10^0
() 10^10
(d)10^20
Which one of the following has the order of magnitude of 10^10 in meters?
(a) Diameter of the earth
(b) Distance to the sun
(c) Distance to the nearest star
(d)Distance to the nearest galaxy
The System International (SI) is built up from ____________.
(a) Base units
(b) Supplementary units
(c) Derived units
(d)All of these
Which of the following is a base unit?
(a) Meter
(b) Kilogram
(c) Second
(d) All of these
Which of the following is a base unit?
(a) Ampere
(b) Kelvin
(c) Mole
(d) All of these.
Candela is a base unit of a base quantity. The base quantity is ________.
(a) Electric current
(b) Thermodynamic temperature
(c) Intensity of light
(d) Amount of substance
The symbol of SI unit ‘Kelvin’ is _____________.
(a) A
(b) K
(c) cd
(d) kg
‘cd’ is the SI unit of _________.
(a) Kilogram
(b) Second
(c) Candela
(d) Mole
Plane angle and solid angle are ____________________________________.
(a) Geometrical quantities
(b) Physical quantities
(c) Supplementary quantities
(d) All of these
The radian is the plane angle between two radii of a circle which cut off on the circumference an arc, equal in length to the ______________.
(a) Radius
(b) Diameter
(c) Diagonal
(d) Tangent
The steradian is the solid angle subtended at the center of a sphere by an area of its surface equal to the square of radius of the ____________.
(a) Circle
(b) Triangle
(c) Sphere
(d) Parallelogram
Solid angle is __________.
(a) Uni-dimensional angle
(b) Two dimensional angle
(c) Three dimensional angle
(d) Four dimensional angle
Radian is a ____________.
(a) Base unit
(b) Supplementary unit
(c) Derived unit
(d) None of these
Steradian is a _____________.
(a) Base unit
(b) Supplementary unit
(c) Derived unit
(d) None of these
Derived units are derived from __________________.
(a) Base units
(b) Supplementary units
(c) Both of them
(d) None of these
The SI unit of force is ______________.
(a) Newton
(b) Joule
(c) Watt
(d) Pascal
Coulomb is SI unit of ___________.
(a) Work
(b) Power
(c) Pressure
(d) Electric charge