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

Define one ampere, 1 Ampere: 1 ampere current is supposed to be flowing...

1 Ampere: 1 ampere current is supposed to be flowing in a conductor if one coulomb of charge flows across section of the wire in one second.

Determine the power dissipated in the load, (a) A current of 15A fl ows th...

(a) A current of 15A fl ows through a load having a resistance of 4Ω . Determine the power dissipated in the load. (b) A wattmeter, whose current coil has a resistance of

Determine the gauss law of magnetism, Gauss' law of magnetism, Gauss' law o...

Gauss' law of magnetism, Gauss' law of electricity,Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism.  This combination is collectively

ELECTROSTATIC ., two insulated charged copper spheres A and B of identical ...

two insulated charged copper spheres A and B of identical size have charge q and -3q respectably .when they are brought in contact with each other and then separated,what are the n

Determine atomic number and weight atomic number, Compared with an atom of ...

Compared with an atom of atomic weight 12 and atomic number 6, the atom of atomic weight 13 and atomic number 6: (1) Contains more neutrons         (2) Contains more electro

Explain shifting pendulums, Explain Shifting pendulums?? Get two soda w...

Explain Shifting pendulums?? Get two soda water bottles that are exactly the similar size. Fill them with water and cork tightly. Place a rod across the back of two chairs. Sus

Describe the process of diffusion in cells, 1.  Describe the process of dif...

1.  Describe the process of diffusion in cells (not more than 2 pages).  2.  Derive the equation for Fick's second law. 3.  Draw a typical FRAP curve and explain its differen

What do you mean by spontaneous process, What do you mean by spontaneous pr...

What do you mean by spontaneous process? Give examples. What is path and state functions? Give examples.

Explain about the term ultrasonics shortly, Explain about the term ultrason...

Explain about the term ultrasonics shortly. The world ultrasonics applies to sound waves which vibrate at a frequency higher than the frequency which can be heard through the h

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