All Questions
6
questions
2
votes
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Shouldn't a part of the ray have to travel $\frac{\lambda_2}{2}$ extra path in the medium $n_2$?
Basically, my teacher had given the class a question regarding thin film interference that, there is a medium with refractive index $n_1$ below that there is another medium with thickness $t$ with ...
- 296
0
votes
1
answer
32
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Evaluating whether a surface apperance is light or dark for the case incident light is in normal direction
The Question:
The system in the figure is illuminated in the normal direction
by wide monochromotic light source in the first environment.
Explain in detail the light and dark condition of the ...
2
votes
1
answer
3k
views
Derivation for optical path length and the origins of the formula
So I've learnt that the formula for optical path length is $OPL = ns$, where $n$ is refractive index of the medium and $s$ is its geometrical length, the problem is i cant really get around this ...
- 21
1
vote
1
answer
1k
views
The impact of refraction on a double slit interference pattern
Source: isaacphysics.org
This set up, without the glass, would produce a standard interference pattern, with a bright central maximum followed on both sides by progressively dimmer maxima.
Placing a ...
- 1,307
0
votes
2
answers
380
views
Condition for constructive interference of light question
The question was asking me to find an expression for the constructive interference between light which follows the paths $PQ$ and $PRS$, once the light has reached the air outside of the two glass ...
- 1,525
0
votes
1
answer
857
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Two layers of glass reflection related to wave interference [closed]
A highly reflective mirror can be made for a particular wavelength at normal incidence by using two thin layers of transparent materials of indices of refraction $n1$ and $n2 (1 < n1<n2 ) $on ...
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