The dimensional formula for power is
[ML2T-2]
[ML2T-3]
[ML2T-1]
[ML2T]
ML2T-2 is the dimensional formula for
Force
Work
Power
Surface tension
In the addition of following numbers with respect to significant figures find the correct answer 8.31 + 10.6723 + 0.0043
18.9866
19
18.99
18.987
Mass of electron is 9.1 x 10-31 kg. The order of magnitude of mass of electron is
-31
-30
-32
-29
Parallax angle of a heavenly body measured from two points diametrically opposite on the equator of the earth is 1.0 minute.If the radius of the earth is 6400 km,find the distance of the heavenly body from the earth.
4.4 x 107 km
4.2 x 106 km
4 x 107 km
4.2 x 105 km
How many significant figures are present in the expression 0.009 m?
3
2
1
4
The dimensional formula for Young's modulus is:
[ML-1T-1]
[M0LT-2]
[MLT-2]
According to Kepler's law the square of the time period of a planet is proportional to the
Cube of the semi minor axis
Square of the semi major axis
Square of the mean radius
Cube of the semi major axis
Which of the following has the dimensions of work?
Velocity
Kinetic energy
Momentum
The error in the measurement of radius of a sphere is 2%. What would be the error in the volume of the sphere?
4 %
8 %
3 %
6 %
