Options:
- A. Newton/Meter2
- B. newton/meter2
- C. Newton/meter2
- D. newton/Meter2
View Answer
B. newton/meter2
Physics
Dimensional analysis is helpful for__________________?
Options:
- A. Deriving a possible formula
- B. Checking the homogeneity of a physical equation
- C. Verification of laws
- D. Only A and B are correct
View Answer
D. Only A and B are correct
Which one is the dimensionally correct equation ?
Options:
- A. f=vt
- B. S=Vit+1/2at2
- C. V=St
- D. V=f/t
View Answer
B. S=Vit+1/2at2
Which equation is not dimensionally correct ?
Options:
- A. E=mc2
- B. Vf=Vi+at
- C. S=Vt2
- D. S=1/2at2
View Answer
C. S=Vt2
Zero error of the instrument is a type of_________________?
Options:
- A. Random error
- B. Personal error
- C. Systematic error
- D. Classified error
View Answer
C. Systematic error
SI unit of the coefficient of viscosity is___________________?
Options:
- A. Kg.m.S-1
- B. Kg m-1.S-1
- C. Kg.m.S
- D. Kg-1.m-1.S-1
View Answer
B. Kg m-1.S-1
In multiplication and division of measurement______________?
Options:
- A. Percentage uncertainties are added
- B. Absolute uncertainties are added
- C. Percentage uncertainties are divided
- D. Absolute uncertainties are divided
View Answer
A. Percentage uncertainties are added
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 ?
Options:
- A. Only (i)
- B. Only (ii)
- C. Only (iii)
- D. Both (i) and (ii)
View Answer
C. Only (iii)
The number of significant figures in 5.400 is________________?
Options:
- A. 3
- B. 5
- C. 2
- D. None
View Answer
D. None
Absolute uncertainty in a measurement depends upon______________?
Options:
- A. The magnitude of the measurement
- B. Least count of the instrument
- C. Percentage error in the measurement
- D. All of a, b and C
View Answer
B. Least count of the instrument