Luminous flux and laser, Physics

Assignment Help:

Luminous flux and LASER:

The luminous flux of a light source is measured in the units of LUMEN (lm). Lumen (lm) is the amount of light emitted per second by uniform (point) source of one candela with in a cone of unit solid angle.

A source having an illuminating power of 1 candela is said to be 1 candle power. A light source is said to be of unit illuminating power or unit luminous intensity if it radiates a flux of 1 lumen through a unit solid angle.

ICBM : Inter Continental Ballistic Missile.

LASER :  Light Amplification by Stimulated Emission of Radiation.

 

 


Related Discussions:- Luminous flux and laser

Light, does lights of different wavelengths help us to see different colour...

does lights of different wavelengths help us to see different colour

Electrostatic force and gravitational force, compare the electrostatic forc...

compare the electrostatic force between two protons to the gravitational force acting on them?

Determine the self inductance of the primary coil, In the device shown in F...

In the device shown in Figure, when the current in the primary coil of 1000 turns increases linearly from 1A to 6A in 200ms, an e.m.f. of 15V is induced into the secondary coil of

Define elastic fatigue, It is the need of elastic strength of a substance w...

It is the need of elastic strength of a substance when subjected to repeated stresses and strain. If the substance is reserved undisturbed for some time, the previous properties ar

Fleming''s left-hand rule, Stretch the fore-finger, central finger and thum...

Stretch the fore-finger, central finger and thumb left hand mutually perpendicular. Then if the fore-finger shows in the direction of field   and the central in the direction of cu

Pressure, What is balance and equilibrium?

What is balance and equilibrium?

Vectors, What is the best means of solving a vector problem? By using 2 or ...

What is the best means of solving a vector problem? By using 2 or 3 Cartesian coordinates?

Find the inductive time constant, The current in an RL circuit builds up on...

The current in an RL circuit builds up one-third of its steady value in 4.56s. Find the inductive time constant.

Illustrate about the zinc blende structure, The Zinc Blende or Sphalerite S...

The Zinc Blende or Sphalerite Structure. Zinc blende is same to diamond cubic structure, but the two FCC sub-lattices are occupied by atoms of two dissimilar elements. Some of

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