Physics - Light & refraction

posted by .

I go this question in a test just today, but I know I got it wrong because I didn't study this section.

It was something along the lines of this I'm pretty sure.

"Explain why there is no critical angle when light travels from air to water"

Can someone explain this to me?

  • Physics - Light & refraction -

    The critical angle is an angle in which light going from a optically dense substance to a lessor dense substance will undergo total internal reflection. If light is going from air, the optically less dense (lower index of refraction), there will be no total reflection at the boundry.

  • Physics - Light & refraction -

    Basically what bobpursely is saying is that you are going from a high index of refraction to a low index of refraction, so you'll have total reflection inside the object. if you are going from air to water, then you are going from a low index to high index, so you won't have total reflection inside the object. bobpursely, correct me if i'm wrong, but i think that's what you're saying.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science

    The speed of light in a prticular ype of glass is 1.68x10^8 m/s. What is the index of refraction of the glass?
  2. Chemistry Test Tomorrow

    I don't actually have problems, but I have a test over stoichiometry tomorrow, which is pretty much going to determine my semester grade. I was just wondering if anyone knew any helpful tips, hints, or just an easier way to explain …
  3. Math (Intergers)

    I'm pretty sure that i know how to do this, but is something like: (-6)-(+2)= -8 I'm not sure and i'm trying to study right now... please help me!
  4. Physics.

    A beam of light passes from air to ethanol, with index of refraction of 1.36. If the angle of incidence (1) is 30.0 degrees, then calculate he angle of refraction, after light passes through ethanol and enters into air. I got 30.0 …
  5. Honors Chemistry

    I'm doing what's called "test repair" for my class where we correct the answers we got wrong on the test. In order to get points back, however, we have to explain WHY that answer is the correct one. Can someone help me with these?
  6. Biology

    I got this question wrong on a quiz and i was wondering what the answer was, to help me study for a test. What do organisms do with O2 ?
  7. calculus

    The question I'm having problems with is If f(x)=3x^2+7x+2, find f'(4) , using the definition of derivative.f'(4) is the limit as x--> ________ of the expression __________________. The value of this limit is _________________. …
  8. Physics. URGENT Help Please

    What is the separation of colors in a rainbow produced by?
  9. Physics

    Two light rays, one red and one violet, encounter a glass surface. If the index of refraction of the red light ray = 1.52, the index of refraction of the violet light ray = 1.54, and the angle of incidence = 30 degrees, calculate the …
  10. Differential equation, calculus

    Hiya, Dt/dr =k/r^2 Is this directly solvable or do I need to separate variables. I've got t=-k/r+c from the former and something along the lines of r^3=kt+c from the latter. Think I'm doing it all wrong. Thanks

More Similar Questions