The dimensional formula of heat is:
[ML2T-2 ]
ML-1T-1
[MLT-2]
[ML-3]
The mass of a substance 3.56 g and its volume is 1.3cm3. The density of the substance is expressed by keeping significant figures in view is
2.7385 g/cm3
2g/cm3
3 g/cm3
2.7 g/cm3
The dimensional formula for surface tension is
[ML-1T-2]
[MLT-1]
[M1L0T-2]
The number of significant figures in 0.007m2 is
1
2
3
4
How many significant figures are present in the expression 0.009m ?
One light year is equal to
9.467x1015 m
9.467x1014m
9.467 x 10 16m
9.467x1010m
An icecube of density 900 kg/m2 is floting in water of density 1000 kg/m3.The percentage of volume of ice-cube outside the water will be :
20%
35%
10%
25%
The dimensional formula of velocity of gradient is
M0L0T-1
M0LT-1
M-1L-1T-1
MLT-2
Which of the following has the same dimension as that of pressure?
Energy density
Angular momentum per unit mass
Power
Energy
If σ = surface charge density,ε = electric permeability,the dimensions of σ/ε are same as
Electric force
Electric field intensity
Electric charge
Pressure
