Question

If there are m physical quantities and n fundamental dimensions in a particular process, then the number of non dimensional parameters is

Answer 1

The physical features of India can be divided into six categories, depending on their geological features:

The Himalayan Mountains.The Northern Plains.Indian Desert.Peninsular Plateau.Coastal Plains.Islands.

Answer 2

Concept:

To answer this question, we need to first recall the following concepts.

• A physical quantity is any physical property which has measurement , i.e. which can be measured in numbers.
• The fundamental dimensions are the dimensions using which dimensions of all other physical quantities can be expressed.
• Non dimensional parameters are used to classify different flow regimes.

Solution:

If there are m physical quantities and n fundamental dimensions in a particular process, then the number of non dimensional parameters is

m-n.

(i.e. m-n independent dimensionless groups).