1.
The numerical value of a given quantity is
2.
Unit of reduction factor is
3.
Lumen is the unit of
4.
Which one of the following is not a unit of Young's modulus?
5.
Young's modulus of the material of a wire is 18 x10¹¹ dyne cm -2. Its value in Sl is
6.
Which of the following measurement is most precise?
7.
The respective number of significant figures for the numbers 23.023, 0.0003 and 2.1x10-3 are
8.
A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of -0.004 cm, the correct diameter of the ball is
9.
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
10.
The density of a cube is measured by measuring its mass and length of its sides. If the maximum error in the measurement of mass and length are 4% and 3%, respectively, the maximum error in the measurement of density will be
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