All Questions
Tagged with refraction water
33
questions
2
votes
0
answers
35
views
Apparent position of object in bowl of water
Say you have a bowl of water and you keep an object in it. What would the apparent position of an object inside the bowl from the position of an outside observer? Will the curvature of the spherical ...
- 187
3
votes
2
answers
3k
views
Why does laser light not bend (refract) when it travels from air to water?
I passed green laser light from air to water but to my suprise the light doesn't bend towards normal even though I changed the angle of incidence.It goes undeflected ,Is it because of its higher ...
- 47
2
votes
1
answer
208
views
Do high powered lasers refract differently than other light?
So I have a question: I am told that there are naval lasers that target over 100's of miles ship-to-ship (not ship to air). Someone asserted that powerful lasers would refract differently than light. ...
- 463
1
vote
1
answer
83
views
Change in nature of image: Putting a concave mirror in water vs in air
I was wondering if we put a concave mirror in water, what will be the difference in the image formed by it in air vs water?
Exception: Here I mean except when rays come from infinity (e.g., sun) ...
- 1,066
0
votes
1
answer
42
views
Refraction of light as seen from a glass of water
When we put a straw in a glass of water the size and bending is more when viewd from side than from up. Is this due to the effect of the glass?
0
votes
0
answers
42
views
Swimming lane line shadow
In an indoor pool, I have noticed a distinctive shadow of the swimming lane lines on the bottom of the pool, whereas people swimming there do not leave shadows.
No shadows of the swimmers can be ...
- 61
11
votes
1
answer
839
views
Refractive index of water
The index of refraction is given by the following formula:
$$
n = \sqrt{\frac{\epsilon \mu}{\epsilon_0 \mu_0}} = \sqrt{\epsilon_r \mu_r},$$
where $\epsilon_r$ is the relative permittivity/dielectric ...
- 665
0
votes
1
answer
41
views
When can I see through water at the beach?
I have some oblique photographs of sandy beaches. I have added a contour at a hue of 120° to roughly divide reds (sand) and blues (water/sky).
Source: https://www.stuff.co.nz/travel/destinations/nz/...
- 103
0
votes
1
answer
113
views
What if water had negative index of refraction
I was reading a book of mine that states that if water had a negative index of refraction then we'd see fish suspended in air. Why? Should not we see still it in water but far away respect to its real ...
-1
votes
1
answer
205
views
Factors affecting Refractive index
I have a doubt that with increase in temperature the refractive index is decreasing but refractive index of ice is lower than water????
0
votes
0
answers
19
views
Consider 4 cases of water droplet, ie when water droplet is in sea, in glass, in air after rain, as humidity?
When water droplet is in air as water vapours it scatters blue light, after rain by refraction dispersion and TIR it forms rainbow , in sea it scatters blue light while water in glass ( drinking ...
- 159
1
vote
0
answers
63
views
Why do objects appear larger in water? [duplicate]
Why does it look bigger when we see something in the water?
- 11
1
vote
0
answers
45
views
Positive correlation between temperature and refractive index of water?
I am currently doing an experiment on refraction for physics class where I am looking at the relation between refractive index and temperature of water. The result I got was the the refractive index ...
- 11
2
votes
3
answers
398
views
Why does frequency remain the same when waves travel from one medium to another? [duplicate]
I was reading about reflection and refraction on BBC Bitesize and I can't understand why frequency is a constant in the wave speed equation. I can't visualise the idea of it. I know that wave speed ...
1
vote
0
answers
35
views
Thickness and refractive index of silica gel layer between fused silica and water interface
I learned that when fused silica contact with water, a layer of silica gel will be formed. However, I cannot find any reference about the thickness and the refractive index of the silica gel. Can ...
- 31