Question

What is the dimensional formula for frequency,wavelength&quantity stress?? Plzz give me answer

Answer 1

dimensional formula for wave length will be M^0L^1T^0.

Frequency has the dimension of inverse time: Tˉ¹. It is the “per second” part of the expression of how often something occurs. Example: the expression for speed, meters per second: m/s, or m.

This means stress is newtons per square meter, or N/m2. However, stress has its own SI unit, called the pascal. 1 pascal (symbol Pa) is equal to 1 N/m2. In Imperial units, stress is measured in pound-force per square inch, which is often shortened to "psi". The dimension of stress is the same as that of pressure