Hi!

Due to excess comments in the last messageboard, I thought of posting the third version of it. Feel free to ask me questions or talk to me about any random topic. I would be happy if you discuss mathematics problems with me.

Regards,

**Swapnil Das.**

## Comments

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TopNewestDo you like Pigeons? – Nihar Mahajan · 1 year, 5 months ago

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– Swapnil Das · 1 year, 5 months ago

Lol no.Log in to reply

– Nihar Mahajan · 1 year, 5 months ago

Why? They are so simple and soft...Log in to reply

– Swapnil Das · 1 year, 5 months ago

They had done something strange on my head :PLog in to reply

https://brilliant.org/problems/maximum-energy/?ref_id=1322810\

@shubham dhull

Could the master provide a solution? – Swapnil Das · 4 months, 1 week ago

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– Brilliant Member · 4 months, 1 week ago

i'm no master :p the q is a little hint: tricky think in the terms of relative motionLog in to reply

– Swapnil Das · 4 months, 1 week ago

(https://brilliant.org/problems/maximum-energy/?ref_id=1322810)[Link]Log in to reply

@aryan goyat

If you get time, please share the InPhO paper. Thanks. – Swapnil Das · 4 months, 3 weeks ago

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@Spandan Senapati Could you tell me. how are the chemistry teachers at FIITJEE (CMP)? – Swapnil Das · 4 weeks, 1 day ago

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– Spandan Senapati · 4 weeks, 1 day ago

For us CDM is the code of Chem teacher. He is a great teacher.... And very receptive..... I like his teaching....Log in to reply

– Swapnil Das · 4 weeks, 1 day ago

Then why KK sir?Log in to reply

– Spandan Senapati · 4 weeks, 1 day ago

Coz CDM sirs strong point is organic... Physical and inorganic.... OK (you know what it means)Log in to reply

– Swapnil Das · 4 weeks, 1 day ago

Ohk! Was he your 11th teacher too? If no, how was your 11th teacher:?Log in to reply

– Spandan Senapati · 4 weeks, 1 day ago

Ya in cmp teachers don't change. In 12th even our teachers are the same.Log in to reply

– Swapnil Das · 3 weeks, 4 days ago

Could you recommend me some books on thermodynamics please?Log in to reply

– Spandan Senapati · 3 weeks, 4 days ago

....Read HCV that's enough...Or refer Atkins physical chem that might be helpfulLog in to reply

@Spandan Senapati

Today, I'm in a great trouble, brother. Perhaps you only could help me out, please help me.

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– Spandan Senapati · 1 month ago

Yes I am..I used to ignore Chem in class 11 in pursuit of solving more of P+M. Initial phases were easy as I am pretty strong with physical chemistry. I knew most of the topics beforehand. But I joined kk sirs class. For he was teaching inorganic(believe me you will feel more of fun rather than rote learning if you go his way) . But I advise join his class coz he is probably the only one teacher who knows linking topics.. The best way.... Chem is scoring sub and don't neglect it.Log in to reply

– Swapnil Das · 1 month ago

Hmm. Everything was alright upto now, I was discouraged for this ion electron method only. I can't solve RC Mukherjee!Log in to reply

@Spandan Senapati

Bhaina, I need your help again :P

You just passed 11th, didn't you? If you could remember, what were the chapters of Mathematics phase test 1? – Swapnil Das · 3 months, 2 weeks ago

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– Spandan Senapati · 3 months, 2 weeks ago

Basic mathematics(functions,limits,derivatives,integration),Trigonometry...That was enough to trouble us in the reshuffling test.Log in to reply

– Swapnil Das · 3 months, 2 weeks ago

Why do they keep Calculus in Phase test 1?Log in to reply

– Spandan Senapati · 3 months, 2 weeks ago

Oh phase test had basic maths,trigonometry,straight lines and circles.The calculus part is just an intro..Nothing much.Its generally taken up in class 12Log in to reply

– Swapnil Das · 3 months, 2 weeks ago

Basic math includes set, function, relation and logs?Log in to reply

@Spandan Senapati

Bhaina could you please provide some advice for NSEP and NSEA to this poor guy? :P – Swapnil Das · 3 months, 3 weeks ago

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– Spandan Senapati · 3 months, 3 weeks ago

Lol.Only we two perhaps know what's the meaning of "Bhaina"in Oriya.....See it a kind of depends how you perceive these exams.For me physics Olympiad is what I had dreamt since I left the HBCSE for the airport(I had chickenpox just on the day our IJSO OCSC started on May 4,2016.Circumstances were not quite good.I had NTSE stage 2 on 8th and I had shifted through permission my centre to Mumbai).I had appeared in class 10 where I had a score quite close to the MAS...but couldn't make.So this yr right from the very start I tried everything I could do to qualify for the OCSC.atleast.Focus on every aspect of Jee physics.Try to get everything and be dedicated to your approach....Some great books are available try reading them not all.Some are-(Kleppner and Kolenkov,David Morin,Griffiths,Arthur Beiser(Modern Physics)etc).Take your time thinking(keep on trying).You may not reach the solution but the thinking that you put into that will definitely help you.But the most important is how you percieve it.Do solve the Inpho and NSEP past q papers.See in Odisha the cutoffs are not high.This time only 4 of us(2 from 12th and I and a friend of mine)had a score greater then the Merit index...So if you do score a bit more than MAS you are through...And NSEA...that seriously is quite easy for someone who has basic knowledge of Maths(and Physics of course)...Log in to reply

– Swapnil Das · 3 months, 3 weeks ago

Knowing that you're certain of qualifying KVPY, do you give more importance to JEE or IPhO >Log in to reply

– Spandan Senapati · 3 months, 3 weeks ago

IPHo was the main priority in class 11(I read so much maths and physics that my Chem marks were surprisingly less).So This time I will have balanced approach towards both.Log in to reply

– Swapnil Das · 3 months, 3 weeks ago

Hari Bola, Jai Jagannath Thank you lol :PLog in to reply

@Spandan Senapati

I had a personal question, feel free to ignore if you don't like.

What's your aim in life? What do you want to become? – Swapnil Das · 3 months, 3 weeks ago

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– Spandan Senapati · 3 months, 3 weeks ago

Well.Pretty much I want to do research in mathematical physics/or Theoretical physics....Although I haven't explored much fields.But I would do research over corporate sector ...I like physics a lot and the use of mathematics just adds more to my interest.....But still I feel its quite hard to predict now.Log in to reply

– Swapnil Das · 3 months, 3 weeks ago

Our interests match so much! I was recently exploring mathematical physics and found that it's much more of mathematics than physics. Theoretical physics is much better, but I don't qualify as of the IQ required.Log in to reply

– Spandan Senapati · 3 months, 3 weeks ago

What do you exactly mean by the IQ required????Some areas of physics do require heavy maths like string theory or relevant super symmetric ones(super string theory is what we say),Quantum mechanics(equations relating the strong coupling of quantum systems are mathematically quite challenging).But earlier both physicists and mathematicians tended to be the same.But it was the unprecedented developments that took place in math(although they were also in physics)that these two seemed to diverge..prediction of laws of nature(is want theoriticial physicists do) and explaining those through equations and their modelling(this is dealt in mathematical physics).Do search for "Edward Witten".The only physicist to win a fields medal.Log in to reply

I know Ed Witten from Class 6th :P

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@Calvin Lin

Kindly delete the following accounts, as they do not serve any particular purpose:

Link 1

Link 2

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For privacy reasons, we do not edit account details without further collaboration about ownership. – Calvin Lin Staff · 4 months, 1 week ago

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– Swapnil Das · 4 months ago

I owned them back in 2013-14. The emails got hacked and passwords lost, forcing me to create a new account.Log in to reply

– Calvin Lin Staff · 4 months ago

In that case, just ignore them then.Log in to reply

@Otto Bretscher

Happy advanced B'day, Sir! – Swapnil Das · 4 months, 4 weeks ago

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@Pranshu Gaba Which branch did you take at the IISc? – Swapnil Das · 10 months, 1 week ago

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– Pranshu Gaba · 10 months, 1 week ago

There is just one branch in IISc for the first three semesters (1.5 years) in the undergraduate program. We have six courses for the each of the first three semesters: Physics, Chemistry, Biology, Mathematics, Engineering and Humanities. After three semesters, we will choose one of these subjects as a major and one subject as a minor.Log in to reply

– Swapnil Das · 10 months, 1 week ago

What are you plans? What will you take?Log in to reply

– Pranshu Gaba · 10 months, 1 week ago

Right now, I think I will take either Maths or Physics as major and biology as minor. However, I still have a lot of time to decide, and my preference changes very frequently. I have no idea what i'll end up taking.Log in to reply

I would really appreciate if you reply to this very question of mine. - Do photons possess mass?

It might be that they don't have rest mass, but have relativistic mass. Or do they don't have both?

@Michael Mendrin – Swapnil Das · 11 months, 1 week ago

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Physics experiments have been done where light travels very slowly, but not in free space. – Michael Mendrin · 11 months, 1 week ago

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– Swapnil Das · 11 months, 1 week ago

Thanks a lot!Log in to reply

@Otto Bretscher Happy Birthday! – Swapnil Das · 1 year, 2 months ago

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– Otto Bretscher · 1 year, 2 months ago

Thanks, but it's not my birthday, actually ;)Log in to reply

– Swapnil Das · 1 year, 2 months ago

LOL, I suddenly I saw a change in your profile to 60. When is your B'day? I want to wish you.Log in to reply

– Otto Bretscher · 1 year, 2 months ago

That change happened a few month ago, on January 27 ;) I usually spend my b-days with the Compañeros in Cuba, but this year, for the special occasion, we went to Alhambra, Granada, Al-Andalus, the most magnificent complex of buildings I have ever seen.Log in to reply

– Swapnil Das · 1 year, 2 months ago

Aww, I missed it :(Log in to reply

– Otto Bretscher · 1 year, 2 months ago

Better late than never; I appreciate the thought. I can't wait to receive your message next year, in Havana, Cuba. What about your own b-day, Comrade?Log in to reply

– Swapnil Das · 1 year, 2 months ago

I am born on the 5th of December, it was very kind of you to ask me, Sir :)Log in to reply

@Otto Bretscher Heppy Bday comrade! – Nihar Mahajan · 1 year, 2 months ago

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– Swapnil Das · 1 year, 2 months ago

Did you know that he had is B'day?Log in to reply

– Nihar Mahajan · 1 year, 2 months ago

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@Jon Haussmann

What if I add the condition : If \(xyz=1\) to the problem? Will the answer be correct then? – Swapnil Das · 1 year, 3 months ago

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@Matt DeCross Would you do like to post some problems on thermodynamics? It shall be greatly appreciated, Thanks! – Swapnil Das · 1 year, 4 months ago

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So, allow me to launch a topic for discussion, a number theory problem. This was the problem I had doubt in, but was unfortunately unable to get a nice solution. Can anyone provide one? – Swapnil Das · 1 year, 5 months ago

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I'm currently studying Algebra and Number theory. Can anyone suggest books for them? – Swapnil Das · 1 year, 5 months ago

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