IIT PHYSICS – ASK ANY QUESTIONS RELATING PHYSICS HERE…
Physics is one such subject that can be described in one word, i.e. Concepts. Without concepts Physics is like a lifeless object. It was one of my favorite subjects. That is why I have started this post to help students. When I was studying I used to run a virtual simulation in my brain that how would things work if something had gone the other way round. It was quite helpful for me.
I want to share my understanding of Physics with all students who want to share time with me. And for no cost at all. As I have come to know after a long experience that knowledge only becomes greater on sharing. So I invite any questions from your side covering any topics in Physics.
Here are some queries that may concern you.
WHO WILL ANSWER YOUR QUESTIONS ?
Your questions will be answered by ME, and 10 different IITians. So there should no question of authenticity.
WHERE CAN I GET THE ANSWERS ?
The answers will be mailed to your E-MAIL id by which you will comment and also will be published on this website for all the people to look at.
HOW MUCH TIME WILL THE PUBLISHING OF ANSWERS TAKE ?
The publishing of answers can take between 1-2 days. So I request you to be patient.
We shall take full responsibility for any wrong answers, hence delay is possible.
HOW MANY QUESTIONS CAN I ASK AT A TIME ?
You can ask as many questions as you want at once.
You can also ask us to look at a particular question in a particular book. Say “Question – 34, Page -65, Irodov, 3rd edition”. Or any particular website, if you provide the link.
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is this possible to see a wave of light in a vaccum? if yes, then why? and if it is no then why and on what basis do we say that light does not need any material medium to propagate?
light exhibit
both wave and paricle nature
nd its wavelength decide its colour
so to decide whether we can see a light wave or not
it depends on its wavelength
light is electromagnetic wave so it does not need material medium to propagate
what is spin magnetic moment and angular magnetic moment how they related to strong magnetic field?
please answer shitikanth’s first & second question
to me also.Its urgently reuired.
please specify your questions…
sir,in heat and temperature (hc verma part2 topic 23.2)
please explain the statement “the zeroth law allows us to introduce the concept of temperature to measure the hotness or coldness of a body”thoroughly.
also explain the statement “we can measure the charge on a system by comparing it with the charge on a standard body but we donot know what exactly it is that we intend to measure”from the same book ch 29 topic 29.1 (unit of charge)
can i expect to score full marks in iit jee physics if the concepts are thoroughly mastered?
yes….if concepts are clear you will definitely get through…
tell me the way of approach to learn physics..espicially mechanics!
@rahul
in mechanics or physics as a whole don’t try to visualize everything…..just go with the equations….if the no of equations are equal to the no of variables the question is solved….
Are you take questions for iit-jee exam from books of H.C.Verma,I.E.Irodov,Serway and Jewett,Resnic and Haliday?
If not,please give details to which books i can refer, for physics to score merit mark.Please mail me.
@Jeevitha
you can go for Physics Multiple choice questions….i can’t remember the writer right now….you can find it on any book store….
well for scoring marks nowadays it is very important to be able to solve questions quickly….for that solve as much MCQ as possible….
Q1)A vessel has a cross-section area “A” and liquid is filled to height h1. At the bottom of this vessel is a small hole of cross-section “a”.Then time taken for the liquid to fall from height h1 to h2 is what?
ans)A[(root 2h1/g)-(root 2h2/g)]/a.
Please send the complete solution to me to arrive at the answer.
Q2)When a large bubble rises from the bottom of a lake to the surface, it’s radius doubles. The atmospheric pressure is equal to that of a coloumn of water of height “h”.The depth of the lake is?
Ans) h
Again please send me the complete solution.
Thanks
Sir, how can I send you the questions?
@tanweepriya
you can mail to me or you can submit it here..
Thank you! You often write very interesting articles. You improved my mood.
@deepika
u r most welcum.
@deepika
anytime deepika.
ok thanx guys.
consider two particles A and B having equal charges and placed at some distance.The paqrticle A is slightly displaced towards B.Does the force on B increases as soon as the particle A is displaced?
@deepika
the answer is 10 V.
@deepika
no matter deepika. the answer is 10 V.
the reason is for a hollow metallic charged sphere the potential inside the sphere is constant and is equal to the potential at the surface.
just one last question. A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 Volts. what is the potential at centre of the sphere?
bare me guys. my electrostatics is too bad!!
@arnav
you are absolutely right.
@deepika
it doesn’t matter if its on large scale or not. we are dealing with electrons here and electrons have mass. even if a single electron transfer occurs mass will change.
i just have the doubt that the change is so negligible that on a large scale there should be no change
@deepika
yes mass will change but it will be negligible
@deepika
yes the masses will change.
the reason is that giving positive charge to a body involved removal of electrons and giving negative charge involves addition of electrons so there will be a change in masses
well the question goes like this—
Two identical metallic spheres of exactly equal masses are taken. One is given positive charge Q and the other an equal negative charge. will this affect their masses?
@deepika
sure why not
@deepika
ask whatever you want to.
well i was also searching for some answers.
maybe u 2 can help. please its urgent.
@shikha
i tried on every forum i could. but no one has got any answer
@arnav
why don’t you try on other good physics forums?
@deepika
thanx for the effort. i too could not find much. thats why asked on this forum. maybe here i could find some solution.
@arnav
well its tough to find matter on this topic. i also searched
on google. could not find nething.
@shikha
well its part of my 12th physics internal assessment. we have been told to make a project report on that.
what kind of project?
@arnav
i have never heard about superconductivity at high temp. thats why i asked. well maybe admin can help you.
@shikha
thanx shikha.but i have to submit a report on superconductivity at high temperature. it is my part of my project.and i cannot find any information regarding it anywhere
@deepika
it is part of my project. so had to it read about it. lol
superconductor at high temperature??
where did you read that??
Superconductivity at very low temperatures has been understood since 1957 in terms of the BCS theory, but high temperature superconductors discovered in 1986 are still unexplained.
sir is it possible to make a material that is a superconductor at room temperature?