Physics Online Multiple Choice Questions With Answers

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Physics Solved MCQs Online Quiz Test

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

  1. Accurate
  2. Precise
  3. Accurate and precise
  4. None of these


Q.2: The dimension of force is———?

  1. MLT-1
  2. MLT-2
  3. ML-1T
  4. ML-1T-2


Q.3: ML-1 T-2 is the dimension of——–?

  1. Force
  2. Pressure
  3. Momentum
  4. Energy


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

  1. Deriving a possible formula
  2. Checking the homogeneity of a physical equation
  3. Verification of laws
  4. Only A and B are correct


Q.5: Which equation is not dimensionally correct ?

  1. E=mc2
  2. Vf=Vi+at
  3. S=Vt2
  4. S=1/2at2


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

  1. Kg.m.S-1
  2. Kg m-1.S-1
  3. Kg.m.S
  4. Kg-1.m-1.S-1


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 ?

  1. Only (i)
  2. Only (ii)
  3. Only (iii)
  4. Both (i) and (ii)


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

  1. The magnitude of the measurement
  2. Least count of the instrument
  3. Percentage error in the measurement
  4. All of a, b and C


Q.9: Steradian is the SI unit of——–?

  1. Plane angle
  2. Solid angle
  3. Both plane angle and solid angle
  4. Neither plane angle nor solid angle


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

  1. Accessible
  2. Invariable
  3. Transportable
  4. Only a and b are correct


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

  1. Sum of their absolute uncertainties
  2. The difference of their absolute uncertainties
  3. The product of their absolute uncertainties
  4. Division of their absolute uncertainties