Advertisements
Advertisements
प्रश्न
Write a short note on the following.
Dimensionless quantities
Advertisements
उत्तर
There are two types of dimensionless quantities –
(i) dimensionless variable and
(ii) dimensionless constant.
- Dimensionless variables – Physical quantities which have no dimensions but have variable values are called dimensionless variables.
Examples: specific gravity, strain, refractive index, etc. - Dimensionless constants – Quantities that have constant values and also have no dimension are called dimensionless constants.
Example: π, e, numbers, etc.
APPEARS IN
संबंधित प्रश्न
[L1M1T-2] is the dimensional formula for ______.
The velocity of a particle v at an instant t is given by v = at + bt2. The dimensions of b are ______
The dimensional formula for gravitational constant G is ______
If the force is proportional to the square of velocity, then the dimension of the proportionality constant is ______
The dimension of `(mu_0ε_0)^{1/2}` is ______
What are the limitations of dimensional analysis?
Using the information from the analysis of v=u+at, what is the dimensional formula for acceleration?
What does it mean if an equation is dimensionally correct?
When converting a drug dosage from mg/kg to μg/g, what conversion factors are used?
Which real-world field relies on dimensional analysis for safety?
