Recent content by suvendu

Thanks fluidistic. Crystal clear :)

Thanks UltrafastPED. It helped. But don't you think it is a bit different case? Or should I consider the friction between me and the chair?

As we read earlier that you can't move a body sitting on it,for you and the body make a total system. And from Newton's 3rd law the action you give to the chair is equal and opposite to the reaction the chair gives you back. So the system has no internal net force acting. But when you sit on a...

Thanks for the reply fluidistic. But I did not get this point. Can you elaborate it a bit please? "In 1 dimension, the bound states, if they exist, are between the infimum value of the potential and the lesser of the assymptotes (assuming they exist) for when x tends to positive infinity and...

And what if it is function?

Thanks for the reply. He didnt mention that. What if it is potential?

Hello everyone. I was yesterday asked in an interview to draw a gaussian curve. I drew. And then they asked in what region would this give rise to bound states? I am really confused how to conclude if a function gives bound state or not. Please help. Thanks.

Thanks bhobba,jilang. And special thanks to bill. It really helped. Finally understood.

Thanks for the reply. But I did not understand how you could say that a particle at rest corresponds to a wave packet built of waves traveling in opppsite directions? Please clarify.

I was going through De Broglie's acceptence speech and I found he said a particle at rest can be associated with a stationary wave. Now what We know wavelength= h/p(momentum). So for a particle at rest we get wavelength = h/0. This is undefined. So does not it state that a particle at rest is...

The word 'Intensity' is used in a lot of cases differently. As like in Astro the way it is defined is different from what is used in optics..!

For any radiation, Intensity is no. of photons incident.

Haruspex, thanks for the note.But I stick to my point. Intensity depends only on number of incoming photon, not frequency.

Rate of emission depends on intensity of incident ligh only. And the energy of the ejected electron depends on the frequency of photons. It all can be explained if you consider particle nature of light : light consists of packets. Each packet interacts with a single electron. So if you increase...

How can you write Q= ∫σ 4 ∏ r^2 dr? It is Q= ∫σda where da=rsinθdθdø That will come out as σ.4πr^2.