The dimensional formula for power is
[ML2T-2]
[ML2T-3]
[ML2T-1]
[ML2T]
How many amu would make up 1 kg?
6. 024 x 1026 amu
1.6 x 1017 amu
9.11 x 1027 amu
8.852 x 10 12amu
The percentage errors in the measurement of mass and speed are 2 % and 3 % respectively.The error in kinetic energy obtained by measuring mass and speed ,will be
12 %
10 %
8 %
2 %
Which of the following will have the dimensions of time?
LC
R / L
L / R
C / L
The dimensional formula for surface tension is
[MLT-2]
[ML-1T-2]
[MLT-1]
[M1L0T-2]
Find the number of times the heart of a human being beats in 10 years.Assume that the heart beats once in 0.8 sec.
3.942 x 108 beats
3.942 x 103 beats
3.942 x 1010 beats
3.942 x 1012 beats
If force F, velocity v and time T are chosen as the base units then the dimension of mass in terms of these are
FVT-2
FV-1T
FV-1 T-1
FVT
The dimensional formula of angular momentum is
MLT-2
ML-1T-
M1L2T-1
MLT-1
The most accurate time measurement device is:
Quartz clock
Electrical Oscillators
Caesium - atomic clock
Seconds Pendulum
Which of the following has the same dimension as that of pressure?
Energy density
Angular momentum per unit mass
Power
Energy
