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Chapter 1 - Measurements - 3
1.
The ___________________ is the solid angle subtended at the centre of a sphere by an area of its surface equal to the square of radius of the sphere.
a) Radians
b) Degrees
c) Steradian
2.
Numbers are expressed in standard form called __________________
a) Scientific Notation
b) Algebric Notation
c) Mathamatical Notation
3.
___________________ refers to an effect that influences all measurements of a particular quantity equally.
a) Human error
b) Machine error
c) Systematical error
4.
In any measurement, the accurately known digits and the first doubtful digit are called.
a) Scientific figure
b) Significant figure
c) Fractional uncertainity
5.
The accuracy of a measurement depends upon the ____________________ in that measurement
a) MLT
-2
b) Fractional or percentage uncertainity
c) Practical uncertainity
6.
The dimensions of force is_______________
a) MLT
-2
b) MLT
2
c) MLT
-3
7.
The symbol used for the representation of dimension of physical quantity is __________________
a) Simple bracket
b) Compound bracket
c) Square bracket
8.
Dimensional analysis means that dimensions can be manipulated as _________________
a) Sytematic quantities
b) Aljebric quantities
c) Math quantities
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