Worksheetsunit and measurement
Total questions: 13
Worksheet time: 7mins
Significant figures of 100 is
1
2
3
4
Rounded off of 1019.55 x 10⁵ upto 5 digits
1019.6
1019.5
1019.4
None
Significant figures of 0.00080 m² is
1
2
5
4
Round off of 142667 upto 5 digits is
14266
14267
142670
None
Multiplication of 6 and 2 is
1
12
0
10
Significant figures of 00.000 is
2
3
5
1
The which is dimensionless is -
Charge
Frictional Force
Density
Refractive Index
The Unit length, velocity and force are doubled. Which of the following is the correct change in the other unit?
Unit of time is doubled
Unit of mass is doubled
Unit of momentum is doubled
Unit of energy is doubled
If the error in the measurement of radius of a sphere is 2%, then the error in the determination of volume of the sphere will be
2%
4%
6%
8%
The pair of quantities having same dimensions is
Young's modulus and Energy
Impulse and Surface Tension
Angular momentum and Work
Work and Torque
The dimension of universal gravitational constant are
[M-1L3T-2]
[ML2T-1]
[M-2L3T-2]
[M-2L2T-1]
The plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the,
Refractive index of a material
Focal length of the lens
Radius of curvature of the curved surface
Aperture of the lens
