Ask Experts Questions for FREE Help !
Ask
    HelpMeThough's Avatar
    HelpMeThough Posts: 2, Reputation: 1
    New Member
     
    #1

    Jun 10, 2013, 03:01 PM
    Light in a dielectric medium?
    Light intensity of 2 Wm^-2 is travelling through air (n = 1.0) and is normally incident on a dielectric surface. If the intensity of the reflected light is 0.3 Wm^-2 what is the refractive index of the dielectric material?

    The correct answer is 2.26
    I have no clue as to how to begin this question.
    HelpMeThough's Avatar
    HelpMeThough Posts: 2, Reputation: 1
    New Member
     
    #2

    Jun 10, 2013, 03:03 PM
    Light intensity and attenuation coefficient?
    Light of intensity 1 Wm-^2 is incident on two dielectric layers that have been stuck together. Calculate the intensity of the light that is transmitted into material 2 (n = 1.2) (attenuation in material 2 can be ignored). Material 1 has attenuation coefficient α = 6 m^-1 and n = 1.7.

    Please show your working, thanks.
    The correct answer is 0.673Wm^-1

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Am I dark skin, carmel, medium, light? [ 1 Answers ]

I love you ALL. Don't change you, cause you all our beautiful people

Can I mix medium blonde with light brown [ 0 Answers ]

I was just wondering if it is possible to mix a medium ash blonde with a light ash brown? I have a bit of red in my hair now underneath and of course the whole top of my head, but now it's growing out and I know if I put a ash medium blonde it will turn red so I was wondering if I mix the 2 would...

Light Medium [ 0 Answers ]

I've always been a lighter skinned person, but recently my color started to fade (guess it's the sun). First time adventuring into using bleaching creams (:O LOL) but wondering what works most and what should stay away from?

I need a dress that will look good on a 13 year old medium height light-skinned girl! [ 2 Answers ]

I need a dress that will look good on a 13 year old medium height light-skinned girl that has matching heels and is under 50 dollars. I want a short but respectful dress, preferably with heels.


View more questions Search