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Aadarsh
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The wavelength of light in two liquids "x" and "y" is 3500 angstroms and 7000 angstroms respectively. Find the critical angle of "x" relative to "y".
 2 years ago
 2 years ago
Aadarsh Group Title
The wavelength of light in two liquids "x" and "y" is 3500 angstroms and 7000 angstroms respectively. Find the critical angle of "x" relative to "y".
 2 years ago
 2 years ago

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apoorvk Group TitleBest ResponseYou've already chosen the best response.0
You know the wavelengths of the red and violet, you can find relative refractive indices for two lights (by assuming yellow light as a constant). Then you can use the formula for critical angle, since you already have the refractive indices. (just calculate everything in terms of an assumed constant 'x', and in the end you'll find that the 'x' gets cancelled)
 2 years ago

Aadarsh Group TitleBest ResponseYou've already chosen the best response.1
Can you expalin the steps please?
 2 years ago

Aadarsh Group TitleBest ResponseYou've already chosen the best response.1
@Ishaan94 please try.
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.2
You need to tell me what's critical angle?
 2 years ago

Aadarsh Group TitleBest ResponseYou've already chosen the best response.1
The angle of incidence for which the angle of refraction is 90 degrees is called "critical angle".
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.2
Oh hmm, so relative reflective index must be \(\large n = \frac{\lambda_x}{\lambda_y}\), right?
 2 years ago

Aadarsh Group TitleBest ResponseYou've already chosen the best response.1
ooooooooh Yeah!!!!
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.2
dw:1334817280641:dw\[n = \frac{\sin\theta_i}{\sin \theta_r}\]
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.2
\(\theta_r \to 90 \implies \sin\theta_r \to1\)\[\implies n = \sin\theta_i\]
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.2
Wow. Nice. Thankyou Aadarsh for posting it.
 2 years ago

Aadarsh Group TitleBest ResponseYou've already chosen the best response.1
Yeah. Got it. So, it is: \[\sin 30 = 3500/7000 = 1/2 \] So, answer = sin 30 degrees, rite?
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.2
Yes, It is.
 2 years ago

Aadarsh Group TitleBest ResponseYou've already chosen the best response.1
Thanks Bhaiiiiiiiiijan!!!
 2 years ago
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