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 the temperature and pressure conditions, What is the name of the tem...

What is the name of the temperature and pressure conditions at which water can be in the solid, liquid and gas phases simultaneously? Ans: The name of the temperature and pr

Distinguish between diamagnetic and ferromagnetic materials, Distinguish am...

Distinguish among diamagnetic and ferromagnetic materials in respect of their (i) intensity of magnetisation, (ii) behaviour in a non-uniform magnetic field and (iii) susceptibilit

Describe the term amorphous solids, Describe the term amorphous solids. ...

Describe the term amorphous solids. Amorphous solids: Solids along with particles not arranged in an ordinary fashion. They have merely short range order or still the partic

Describe the resolution of the scanning electron microscope, Describe the r...

Describe the resolution of the scanning electron microscope. Resolution of the SEM (scanning electron microscope): The spatial resolution of the SEM depends onto the size of

Why is quantum mechanics important, Why is quantum mechanics important? ...

Why is quantum mechanics important? Quantum mechanics is important to understand the behavior of systems at atomic length scales and duration smaller. For illustration, when Ne

Atomic structure, Review guide: gases: heat, temperature, volume

Review guide: gases: heat, temperature, volume

Motion, what causes change in motion? what laws govern motion? how do objec...

what causes change in motion? what laws govern motion? how do objects move in one dimension? how do objects move in two dimension?

What are eddy currents, What are eddy currents? State how their effect is d...

What are eddy currents? State how their effect is decreased in transformers. (b) Verify the ef?ciency of a 15 kVA transformer for the following conditions: (i) full load, un

Vectors and scalars, the accelaration of a plane as it takes off would that...

the accelaration of a plane as it takes off would that be a vector or a scalar

Define the brightness mode of display in brief, Define the brightness mode ...

Define the brightness mode of display in brief. B-Mode Into the B-mode or Brightness mode of display, the time-of-flight (i.e., travel time) of the sound energy is exhibited

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