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				   brief explanation on wave optics
				   

5 years ago

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										Electron microscopes can make images of individual atoms, but why will a visible-light microscope never be able to? Stereo speakers create the illusion of music that comes from a band arranged in your living room, but why doesn't the stereo illusion work with bass notes? Why are computer chip manufacturers investing billions of dollars in equipment to etch chips with x-rays instead of visible light?

The answers to all of these questions have to do with the subject of wave optics. So far this book has discussed the interaction of light waves with matter, and its practical applications to optical devices like mirrors, but we have used the ray model of light almost exclusively. Hardly ever have we explicitly made use of the fact that light is an electromagnetic wave. We were able to get away with the simple ray model because the chunks of matter we were discussing, such as lenses and mirrors, were thousands of times larger than a wavelength of light.

Huygens' principle

Huygens considered light to be a wave. He envisioned a wave crest advancing by imagining each point along the wave crest to be source point for small, circular, expanding wavelets, which expand with the speed of the wave. The surface tangent to these wavelets determines the contour of the advancing wave.
8 months ago

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Vijay Mukati 6 months ago
 
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Avinash 6 months ago
 
I have already forwarded your number to our concerned team. Or you can visit the above link provided by Mr. Avinash to get all the information. Thanks.
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Vijay Mukati 6 months ago
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You will not be eligibile for the admission into IITs. Thanks.
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Vijay Mukati 7 months ago
 
5056 AIR is in advanced or mains.
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Vijay Mukati 7 months ago
 
It is a NO for NITs but i don’t favour dropping a year, rather i would advise to visit the official websites of some renowned institutions where you can seek admission and pursue your...
 
Ayushmaan Vardhan 7 months ago
which is best books for chemistry for iit advance plz suggest one each physical, organic and inorganic chemistry
 
 
Well to be honest, i’ve never heard of it before. But what i would like to suggest is : go to a library and get hold of all the books including cengage publication. Read a random chapter...
 
Neeti 6 months ago
 
P.Bahadur for Physical Chemistry Solomons for organic chemistry O.P Randon for inroganic chemistry :) and even J.D.Lee is very good for inorganic chemistry :) Feel free to ask any follow up ...
 
Neeti 6 months ago
 
what is ur opinion about cengage publication
 
gunvant bhati 6 months ago
Hi.. I am little bit confuse that i should target Computer programming courses or should go in Technical degree programmes. I have interest in programming. So please give me guidance for my...
 
 
Hi I would suggest u to go for Technical courses , as there is ample of computer programming involved in technical courses like computer , IT , ECE engineering and also they have gt a much...
 
AskiitianExpert Shine 6 years ago
Tell me the name of biggest state in the U.S.A.?
 
 
Texas was the largest state in the U.S. from 1845 to 1959 when Alaska became the largest state in the U.S. as far as land mass is concerned. California is the third largest state as far as...
 
Vijay Luxmi Askiitiansexpert 6 years ago
What to and from whrere to study for jee mains?
 
 
generally schools provide these kind of coachings....and also askiitians provide a really good letures of syllabus in iit jee entrance....other websites like raoiit academy is also very...
 
darshini 5 months ago
 
Apart from the websites, u may also refer the following books: Maths: T.M.H , Amit Agarwal, Cengage publications etc Physics: H.C Verma, Cengage publications etc Chemistry: O.P Tondon etc
 
Krishna Koushik 5 months ago
 
organic chemistry and narendra avasti for chemistry....dc pandey – a wonderful book for physics....
 
darshini 5 months ago
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  • Complete JEE Main/Advanced Course and Test Series
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