CBSE-XI-Physics
01: Introduction to Physics
- #2A physical quantity is measured and the result is expressed as nu where u is the unit used and n is the numerical value. If the result is expressed in various units then
-(a)
n∞sizeofu
(b)
n∞u2
(c)
n∞u
(d)
n∞1u.digAnsr: dAns : (d) `` n\propto \frac{1}{u}``
The larger the unit used to express the physical quantity, the lesser will be the numerical value.
Example:
1 kg of sugar can be expressed as 1000 g or 1000000 mg of sugar.
Here, g (gram) is the larger quantity as compared to mg (milligram), but the numerical value used with gram is lesser than the numerical value used with milligram.