Physics MCQs For Entry Test 2 Online Preparation

1. Which equation is not dimension-ally correct ?

A. D) S=1/2at2

B. B) Vf=Vi+at

C. C) S=Vt2

D. A) E=mc2

2. The dimension of force is ?

A. MLT-2

B. ML-1T-2

C. ML-1T

D. MLT-1

3. Number of significant figures in 0.0173 are ?

A. Four

B. Three

C. Five

D. Two

4. In any measurement the significant figures are ?

A. All accurately known digits

B. Only accurately known digits

C. All accurately known and all doubtful digits

D. Only doubtful digits

5. Smaller the least count of the instrument more is the measurement ?

A. None of these

B. Accurate

C. Accurate and Precise

D. Precise

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

A. Both (i) and (ii)

B. Only (i)

C. Only (iii)

D. Only (ii)

7. ML-1 T-2 is the dimension of ?

A. Force

B. Energy

C. Pressure

D. Momentum

8. A digit zero in a measurement ?

A. Always significant

B. Always insignificant

C. May be significant may not significant

D. Significant only if left to a significant figure

9. Dimensional analysis is helpful for ?

A. d) Only a and b are correct

B. c) Verification of laws

C. b) Checking the homogeneity of a physical equation

D. a) Deriving a possible formula

10. SI unit of coefficient of viscosity is ?

A. Kg.m.S

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

C. Kg m-1.S-1

D. Kg.m.S-1

Physics MCQs For Entry Test 2 Online Preparation

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