Explain limitations of dimensional analysis, Physics

Assignment Help:

(i)  The size examines cannot be operated to derive relations other than product of power functions, for example, s = ut + 1/2 at2 or y = y0 cosωt and so on, cannot be derived openly.

(ii) The size examines cannot be operated to measure those relations that involve more than 3 unknowns, Though, we can use them to check the correctness of a relation even if variables are more than 3.

(iii) Even if a physical value relays upon 3 quantities, out of which two have similar dimension then dimensional analysis cannot be applied to derive such a formula but can be used to check the relation.

(iv) Numerical trigonometric ratios, constants and ratios which are dimensionless cannot be derived.

(v) Physical quantities having similar dimensions may not be the similar. For example [ML2T-2] is a dimensional relation for torque as well as work or energy.

 

 


Related Discussions:- Explain limitations of dimensional analysis

Types of charges, There exist two types of charges in nature:- (i) Posit...

There exist two types of charges in nature:- (i) Positive charge         (ii) Negative charge Charges with the same electrical sign repel each other, and charges with oppo

How many amps of current in 150-watt 120 volt light bulb, Used normally, a ...

Used normally, a 150-watt, 120 volt light bulb requires how many amps of current? Ans: Used generally, a 150-watt, 120 volt light bulb needs 1.25 amps.

Is it probable for an electron to be moving northward, Is it probable for a...

Is it probable for an electron to be moving northward in a northward-directed electric field? Answer: The force exerted on a negatively charged particle with an electric f

Cathod rayosciloscope, what color is used in cro to display to waveform and...

what color is used in cro to display to waveform and what is the wavelength of that color

Calculate outlet mole fraction, An air stream is saturated with a vapor (B)...

An air stream is saturated with a vapor (B) at 130°F and 1 atm pressure.  It is cooled down to 80°F where some of the B is condensed and separated from the vapor stream.  The remai

A capacitor is able to serve as which of the following, Questions: A ca...

Questions: A capacitor is able to serve as which of the following? Answer: By classification a capacitor is a charge storage device. In storing charge a capacitor as we

Calculate the wavelength of the light used, Q. A Plano-convex lens of radiu...

Q. A Plano-convex lens of radius 3 m is placed on a flat glass plate and is illuminated by monochromatic light. The radius of the 8th dark ring is 3.6 mm. Calculate the wavelength

Explain galvanometer, Galvanometer: 1. An electromechanical instrument,...

Galvanometer: 1. An electromechanical instrument, which is used to detect the presence of current in a circuit is known as galvanometer. 2. The major parts of a galvanomete

Explain functions of the commutator, Functions of the commutator:  A co...

Functions of the commutator:  A commutator is a device, which under certain conditions changes ac into dc and vice versa. The commutator is a form of rotating switch placed

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd