A cube has a side 2.41m. The total surface area of the cube with regard to significant figures is
5.81 m2
5.8081m2
34.8486m2
34.84 m2
The time dependence of physical quantity p is given by p = p0 exp (-αt2), where α is a constant and t is the time.The constant α
is dimensionless
has dimensions[T-2]
has dimensions[T2]
has dimensions of p
One meter = ______AU
6.67x10-12AU
1.58x 10-5ly
4.86x10-6AU
1.057 x 10-10ly
A vernier Callipers with 1MSD = 1cm has 5 divisions as the vernier. The least count is
0.8mm
0.8cm
0.4cm
0.5cm
The angle subtended by a satellite by the two directions of observation is 2.552 x 10-2 rad.If the diameter of earth is 1.276 x 107m. What is the distance of the satellite from the earth?
6 x 108 m
5 x 108m
2.5 x 108m
4 x 108m
The dimensional formula for surface tension is
[MLT-2]
[ML-1T-2]
[MLT-1]
[M1L0T-2]
The dimensional formula of potential
[ML2T-3]
[ML2T-3A]
[ML2T-2A]
[ML2T-3A-1]
How many significant figures are present in the expression 0.009m ?
3
2
1
4
Which of the following is a dimensional constant?
Refractive index
Poisson's ratio
Relative density
Gravitational constant
Which of the following possess a unit but has no dimensions?
Angular Frequency
Angle
Stress
Strain
