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

Kinematics, Find the value of g by free fall method.

Find the value of g by free fall method.

Newtons law of inertia truck and ladder, Newtons law of inertia Truck and L...

Newtons law of inertia Truck and Ladder As per to Newton's first law, an object in motion continues within motion along with the similar speed and in the similar direction unle

Explain continuous x-rays, As an electron passes close to the positive nucl...

As an electron passes close to the positive nucleus of atom, the electron is moved from its path as given in diagram. This results in deceleration of the electron. The loss in powe

Order of density in nucleus, The order of density in nucleus is: (1)10 ...

The order of density in nucleus is: (1)10 8 kg/cc (2)10 -8 kg/ cc (3)10 - 9kg/cc (4)10 12 kg/cc Ans; (4)10 12 kg/cc

What is electric potential and electric potential energy, Q. What is the di...

Q. What is the dissimilarity between electric potential and electric potential energy? Ans: Suppose you desire to know the electric potential energy that a particular part

Measurement of refractive index, Hence refractive index µ can be determine ...

Hence refractive index µ can be determine by measuring the diameter of Newton's rings first with air and then with the liquid for same value of m.

Radiation hazards, Radiation Hazards: 1. They can injure our body cells...

Radiation Hazards: 1. They can injure our body cells. 2. Excessive radiation might be cause cancer. 3. Energetic radiation penetrates inside the body and can cause other

Derive einsteins mass energy relation, The experimental set-up for producin...

The experimental set-up for producing Newton's ring is shown in fig. (A). A plane-convex lenses L of large radius of curvature with its convexities is placed on a plane glass plate

Determine the displacement current, Each plate of a parallel plat capacitor...

Each plate of a parallel plat capacitor has area 15 cm 2 and is being charged. The time rate of variation of electric field between the two plates of the capacitor is 12.6 x 10 9

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