We derived a formula to calculate the dielectric constant for some materials. It works well for gases and some liquids. But, water has a extraordinary dielectric constant of ~80. I tried googling it up but couldn't find any place which explains (mathematically) why it's so big. The professor...
Off pg 977 MTW Gravitation :
Consider a classical radiation field whose associated quantum mechanical particles have integer spin S, and zero rest mass. Resolve that radiation field into spherical harmonics - i.e. into multipole moments. all components with l<S will vanish; in general those...
Hey guys.
I'm in third (final) year of my B.Sc. in physics. Have done/will be doing courses like Relativistic QM, intro to QFT, GR, condensed matter, etc. I am interested in astrophysics and cosmology and have done some work on it under a prof during vacations. But, my CGPA is on the lower...
http://www.newscientist.com/article/dn17319-physicists-create-black-hole-for-sound.html"
The team cooled 100,000 or so charged rubidium atoms to a few billionths of a degree above absolute zero and trapped them with a magnetic field. Using a laser, the researchers then created a well of...
Suppose an observer is moving at some constant velocity(<< c) and observing the young's double slit experiment. What changes will it observe compared to an observer at rest? This is what i could make out :
1) The wavelength of incoming light will change (doppler effect)
2) By the intuition...
I'm searching for an example of how to find out generator function for a canonical transformation, when new canonical variables are given in terms of old variables. Any help is greatly appreciated.
I'm making a question paper with answers having multiple options. I made/got the questions and right answer, but I'm unable to get wrong answers. Please people try to make some basic level mistake to get a wrong answer and tell me (Pardon me if I've posted this in wrong place)
1) Find the...
I have to make a circuit which works like this : I'll have some buzzers (just bulbs which glow when switch is pressed); as soon as one buzzer is pressed, others stop working till the first switch is released. I don't have an experience of making circuits, except the easiest ones made in school...
I'll be studying electromagnetism next sem (January) and I thought reading Feynman before the proper start of course will be useful, but Feynman himself said( in the preface) that he did not do much creation in vol II. So, is there any other Feynman sort of book on electromagnetism or I should...
I am trying to solve the diff. equation -
a\frac{d^{2}x}{dr^{2}} + (br + c/r)\frac{dx}{dr} + dx = 0
I got it while solving a variant of damped harmonic oscillation.
Any hints (Frobenius method won't work)
I learnt that given a vector space we can construct a basis for it. Can anyone give me an example of this thing (except the trivial example of 2-D and 3-D euclidean space.)
Homework Statement
Derive Newton's Law of gravitation using kepler's laws.
Homework Equations
Kepler's law equations.
etc.
The Attempt at a Solution
l= r(1- e*cos(theta)) l- const. e- eccentricity
Solving these equations using kepler's laws (r^2(d(theta)/dt), etc.)...
Recently I attended a lecture related to the physics behind swing of cricket ball.
But the speaker dealt with the swing before pitching(and dealt loosely with late swing). He took only the effects of air in consideration. I am interested to know how the pitch effects the swing(or seam movement)...
This year I'll join B.Sc.(Hons) Physics. Its a 3 year course. I've heard that for doing a master degree in US requires 4 years of study. Will I be able to do master deg in US.
I read that when a galaxy comes in the path of light coming from a quasar, its path bends slightly resulting in the formation of a giant luminous arc (called einstein ring). The phenomenon is called gravitational lensing. Can someone tell me something more about gravitational lensing ? Please...
Homework Statement
What is the product when 1,1,4,4-tetra D cyclohexane
is treated with SO2Cl2
The Attempt at a Solution
I'm confused whether Cl will replace D or H (it must replace any one of them)
Homework Statement
In aqueous base, 97% of 2,2-diphenylethanal is present as a species different from the aldehyde, enol or aldol addition or condensation products. What is this species? Please also try to explain the mechanism.
Homework Equations
The Attempt at a Solution...