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is this correct???

I want to know whether the the solution is correct.

Note by Tanishq Varshney
1 year, 6 months ago

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correct answer is option b · 1 year, 6 months ago

@Saurabh Patil · 1 year, 6 months ago

Comment deleted Apr 25, 2015

from snells law, considering TIR at AC

$$\mu$$ of glass$$\times sin(\theta_{c})=\mu$$ of liquid $$\times sin(90)$$

$$sin(\theta_{c})=\frac{2 \mu}{3}$$ · 1 year, 6 months ago

Oohh sorry @Tanishq Varshney . My mistake I wrote a solution(nope just a correction). · 1 year, 6 months ago

Comment deleted Apr 26, 2015

The most idiotic thing in the solution derived answer is that it shows the refractive index of the liquid to be greater than that of the glass which is the biggest flaw.!!

The solution is violating the very much first required condition that if a beam of light is to be totally internally refracted then the refractive index from which the ray is incident (incidence medium) is to be less than that of the medium into which it is imagined to be entering (to verify the Snell's law offcourse.) · 1 year, 6 months ago

Last thing i want to ask is the answer B then, plz reply saurabh · 1 year, 6 months ago

have i put the equation right saurabh. so the answer is B then i guess · 1 year, 6 months ago

Ya that goes correct the option B is correct!! $refractive index of liquid < \frac{3\sqrt{3}}{4}$ · 1 year, 6 months ago

Oh can u please tell me what is guw=auw/aug. Or aug/auw · 1 year, 6 months ago

Comment deleted Apr 26, 2015

@Saurabh Patil see my way. i=60

Now

Sin60/sin(r) = guo

Or √3/2 = uo/ug Is this the correct way?? Now I think its right sorry @Tanishq Varshney . · 1 year, 6 months ago

Comment deleted Apr 26, 2015

Oh I know it please tell if my Sol is correct or not.It gives the right answer.(b).I must have had made a mistake that time. · 1 year, 6 months ago

Comment deleted Apr 26, 2015

Oh sorry I don't know Latex u is refractive index and 1u2 means refractive index of 2nd medium with respect to 1@Saurabh Patil . · 1 year, 6 months ago

Kalash I respect the way you interpret the equations guw=auw/aug. Or aug/auw but there is a better way to solve such questions.

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Use the above law directly which would surely give you direct and correct results. · 1 year, 6 months ago

Thanks I will use that next time .pls check the sol I gave above. · 1 year, 6 months ago

i hope u know the meaning of critical angle.

according to snells law $$\mu_{1}sin(\theta_{1})=\mu_{2}sin(\theta_{2})$$

or in other words $$\mu sin(\theta)=constant$$ · 1 year, 6 months ago