Light wave and matters, engineering, Other Engineering

Expertsmind.com brings you unique solution in physics

-          What is light?-           

-          Light is an electromagnetic wave that also comes in "photons"

-          Each type of light or photon has a different wavelength, frequency and energy.

-          In order of increasing wavelength, the forms of light are gamma rays, x-rays, ultra-violet, visible light, infrared, micro waves, radio waves

           What is matter?   

-          Ordinary matter is made is of atoms.

-          Atoms are made of protons, neutrons, and electrons.

-          Isotopes  of a particular chemical elements have the same number of protons but different numbers of neutrons 

-          Matter can emit (lamp) , absorb, transmit (mirror, glass) or reflect light

-          How does light tell us the temperatures of planets and stars?

  Objects such as planets and stars produce thermal radiation spectra, the most common type of continuous spectra. We can determine the temperatures from these objects because the hotter the objects are the more radiation per unit area and emit photons with a higher energy.

How does light tell us the speed of a distant object?

The Doppler Effect tells us how fast an object is coming towards or us or away from us. Spectral lines are shifted to shorter wavelengths for objects moving towards us and longer wavelengths for objects moving away from us.

Posted Date: 2/11/2012 11:07:52 PM | Location : United States







Related Discussions:- Light wave and matters, engineering, Assignment Help, Ask Question on Light wave and matters, engineering, Get Answer, Expert's Help, Light wave and matters, engineering Discussions

Write discussion on Light wave and matters, engineering
Your posts are moderated
Related Questions
Given data for an F-4 (W=40000 lb, S=530 ft^2, Ta@sea level=35800 lb, Mach=1.5, h=20000 ft (std day), Cd0=.0224, k=.1516) find aircraft''s specific excess power in straight-and-lev


MOS IC-S: Not all IC's are constructed using bipolar components, IC's are often designed to utilize either bipolar transistors or "Field-Effect transistors" (FETS).  The Field

Internal Rate of Return: Multiple Alternatives To compare multiple alternatives using the IRR as measure of economic worth we must use the incremental approach. It is erroneou

I want to buy a car. The Msrp is $31,000. I pay $516 per month for five years. The quoted apr is 6.9%. I put down $800. How much did I pay for the car?

Variable magnetic coupling transducers A transducer of this type relies on variable coupling between magnetic coils. An example is a Linear Variable Differential Transformer (L

scaning electro microscope,transmission microscope


Derive the functional relationship between the no-arbitrage values of the two vertical spreads.

A charitable organization wants to design a special ATM machine to be used by needy people. The association supplies the needy person with a pin number to be able to use the ATM