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#### Physics Solved MCQs Online Quiz Test

Q.1: Smaller the least count of the instrument more is the measurement——–?

- Accurate
- Precise
- Accurate and precise
- None of these

B

Q.2: The dimension of force is———?

- MLT-1
- MLT-2
- ML-1T
- ML-1T-2

B

Q.3: ML-1 T-2 is the dimension of——–?

- Force
- Pressure
- Momentum
- Energy

B

Q.4: Dimensional analysis is helpful for———?

- Deriving a possible formula
- Checking the homogeneity of a physical equation
- Verification of laws
- Only A and B are correct

D

Q.5: Which equation is not dimensionally correct ?

- E=mc2
- Vf=Vi+at
- S=Vt2
- S=1/2at2

C

Q.6: SI unit of the coefficient of viscosity is———-?

- Kg.m.S-1
- Kg m-1.S-1
- Kg.m.S
- Kg-1.m-1.S-1

B

Q.7: Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ?

- Only (i)
- Only (ii)
- Only (iii)
- Both (i) and (ii)

C

Q.8: Absolute uncertainty in a measurement depends upon——-?

- The magnitude of the measurement
- Least count of the instrument
- Percentage error in the measurement
- All of a, b and C

B

Q.9: Steradian is the SI unit of——–?

- Plane angle
- Solid angle
- Both plane angle and solid angle
- Neither plane angle nor solid angle

B

Q.4: An ideal standard of measurement of a base quantity has characteristics——–?

- Accessible
- Invariable
- Transportable
- Only a and b are correct

D

Q.10: Total uncertainty, in the result obtained from the subtraction of two measurements, is equal to——–?

- Sum of their absolute uncertainties
- The difference of their absolute uncertainties
- The product of their absolute uncertainties
- Division of their absolute uncertainties

A