Normal type of MCQ with one correct option
Which one of the following is not a unit of length?
angstrom
light year
fermi
radian
Normal type of MCQ with one correct option
Which pair of quantities has dimensions different from the other three pairs?
Impulse and linear momentum
Planck’s constant and angular momentum
Moment of inertia and moment of force
Young’s modulus and pressure
Normal type of MCQ with one correct option
The dimensions of the coefficient of viscosity are
ML2 T(2
MLT(1
ML(1 T(1
ML(1T(2
Normal type of MCQ with one correct option
The SI unit of the universal gravitational constant G is
Nm kg(2
Nm2 kg(2
Nm2 kg(1
Nm kg(1
A,B
B,C
C,D
A,B & D
Comprehension
Measurement is an important aspect to express any physical quantity. The measurement may be a direct or indirect approach. But the accuracy in the measurement depends on the approach, instrument, observation and proper recording. The error that might creep in will get propagated to all the places and in all relations where we use this measured value. Irrespective of the system, the product of number and unit is a constant.
The parallax of a distance object observed from two points across the diameter of our earth is 1( of an arc. If radius of earth is 6400 km, of the distance of the body is (1 A.U. = 1.5 × 108 km):
0.2 A.U
0.2 km
0.293 A.U.
1 A.U
Comprehension
Measurement is an important aspect to express any physical quantity. The measurement may be a direct or indirect approach. But the accuracy in the measurement depends on the approach, instrument, observation and proper recording. The error that might creep in will get propagated to all the places and in all relations where we use this measured value. Irrespective of the system, the product of number and unit is a constant.
As the value of number n in nu = constant is increased, the unit u will:
Be increased
Be decreased
Remain same
Increase according the system
Comprehension
Measurement is an important aspect to express any physical quantity. The measurement may be a direct or indirect approach. But the accuracy in the measurement depends on the approach, instrument, observation and proper recording. The error that might creep in will get propagated to all the places and in all relations where we use this measured value. Irrespective of the system, the product of number and unit is a constant.
To find the radius of a tangent galvanometer which of the following is not required?
Scale
Thread
Screw gauge
Vernier caliper
Assertion(Reason
A.Least count of all screw based instruments is same.
R.Least counts for all screw based instruments are found using the ratio pitch per division of circular scale.
Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true