Definition of fundamental units, Physics

(i) Meter: The presently accepted definition of meter is the length of path travelled by light in space in 1/299,792,458th second.

(ii) Kilogram: Kilogram is the fundamental unit of volume. It is explained as the mass of a particular cylinder of platinum - iridium kept at the International Bureau of Weights and Measures in Paris.

(iii) Second: Second is the fundamental unit of time. It is explained as 86,400th part of seem solar day. Second is accurately measured by an atomic clock.

 

Posted Date: 4/13/2013 2:02:15 AM | Location : United States







Related Discussions:- Definition of fundamental units, Assignment Help, Ask Question on Definition of fundamental units, Get Answer, Expert's Help, Definition of fundamental units Discussions

Write discussion on Definition of fundamental units
Your posts are moderated
Related Questions
State the process of diffusion When  these  two  pieces  are  joined  together and  suitably  treated,  they  from  a  pn junction. Moment they form a pn junction, some of the

Q. How shall you measure wavelength of light used in Newton's ring experiment? Derive the formula used.   Measurement of Wavelength of Monochromatic Light using Newton’s Ri

o meteors of rest-mass 0.1 and 0.2 kg, respectively, collide. If the relative speed before collision is 0.1c and an observer sees them coming with an equal and opposite speed and s

What is the ratio of mass of an electron to the mass of a proton: (1) 1 : 2 (2) 1 : 1 (3) 1 : 1837    (4) 1 : 3 Ans: 1: 1837


Assume the condition for balance in a Wheatstone Bridge Using the principle of Wheatstone bridge, describe the method to determine the specific resistance of a wire in the laborato

A copper wire whose diameter is 0.16 cm carries a steady current of 10 A. What is the current density of the wire?Also calculate the drift velocity of the electrons in copper.

It describes that the total energy (pressure energy, potential energy and kinetic energy) of an incompressible and non-viscous fluid in steady flow by a pipe remains constant throu

Alloying: When an impurity atom of a different size compared to the host atom is placed into the crystal lattice, the impurity atom distorts the resin around it, either by pushing

what is friction force? why does opposes the motion?