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

Critical temperature in superconductors resistance , why at critical temper...

why at critical temperature in superconductors resistance becomes zero? Solution) For conductors as the temperature increases their rasistance increases and as temperature decreas

Explain degree of freedom of nonlinear polyatomic gas, A polyatomic (non-li...

A polyatomic (non-linear) molecule (like NH3) can rotate about any of three co-ordinate dimension. As it has 6 degrees of freedom, 3 rotational and 3 translational. At normal tempe

Electrical work, Electrical work: Electrical work is done if a quantity...

Electrical work: Electrical work is done if a quantity of charge (coulombs) is moved between two points which are at different electrical potentials. The SI unit of work

The atomic number of an element represents, The atomic number of an element...

The atomic number of an element represents: (1) Number of neutrons in the nucleus   (2) Number of protons in the nucleus  (3)Atomic weight of element  (4)Valency of el

What is angular velocity, The power of change of angular displacement with ...

The power of change of angular displacement with respect to time is known as angular velocity.

Chronology protection conjecture, Chronology protection conjecture (S.W. Ha...

Chronology protection conjecture (S.W. Hawking) The concept that the formation of any closed timelike curve will be destroyed automatically trhough quantum fluctuations as soon

Explain the electric forces and fields, Explain the Electric Forces and Fie...

Explain the Electric Forces and Fields This can be thought of in terms of an electric field, E, similar to the gravitational field discussed earlier [Fg = m g( r ) where at the

N-type semiconductor, Consider a pentavalent impurity such as phosphorus (P...

Consider a pentavalent impurity such as phosphorus (P, Z = 15) is doped in a pure semiconductor germanium (Ge, Z = 320. Each phosphorus atom forms four covalent bonds with four ger

Edwards-casimir quantum vacuum drive, Edwards-Casimir quantum vacuum drive ...

Edwards-Casimir quantum vacuum drive A hypothetical drive exploiting the peculiarities of quantum mechanics through limiting allowed wavelengths of virtual photons on one side

Positive charge on n-side of the junction, Positive charge on n-side of the...

Positive charge on n-side of the junction Some  of  the  free  electrons  move  across  the junction  from  n-type  to  p-type, leaving  behind  positive  donor  ions  as  they

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