Recent content by mukul

Thanks a lot chestermiller for helping

For an ideal gas, should we consider loss due viscous forces.

There had been a big time debate in my college between chemistry faculties and physics faculties on whether the following process is reversible or not. consider that there is some gas (assuming ideal gas) in a chamber with friction less piston of 5kg and 2 kg mass on top of it as shown in the...

I was about to post the same question, and to my surprize I saw that the same questions is already on the top of the discussion list. Really surprizing. :-O Actually I know an answer to this question, and my answer is different from what most of the teachers teach. I want opinion of members...

Did I answer your question completely?

SammyS can you please explain how did arrive at that. Specially parts B and C

The whole problem lies when you say that potential is defined as kq/r (here r is distance) and tries to plot r on -ve x axis Lets be clear on what parameter you choose to represent on x-axis. a) If you represent distance on x-axis then curve will never lie in 2nd or 3rd quadrant as distance...

Is it safe to assume that according to you, following is the status A correct B incorrect C incorrect D not sure

yes the result will come out to be same as that in case of solenoid provided the length of rectangular coil is >> than width of rectangular coil. this >> condition is needed in both the case (ie rectangular coil case and solenoid case) since this is the condition which allows us to assume that...

In my explanation, I clearly stated this assumption (ie moving charge is assumed positive). However if you want to draw the same analogy for a negative charge then just change z to -z ie replace cliff to something like a well. I am not sure what you mean here. But please check if you are not...

Homework Statement In a dark room with ambient temperature T0, a black body is kept at a temperature T. Keeping the temperature of the black body constant (at T), sunrays are allowed to fall on the black body through a hole in the roof of the dark room. Assuming that there is no change in the...

1. Yes the graph is assumed is correct with asymptote at x=0,y=0 2. The graph will not have a curved top. It will approach to infinity at x=0,y=0 3. As you said 3d equation seems obviously to be z = \frac{ kq}{\sqrt{ { x}^{2}+{ y}^{2}}} 4. A possible application would be finding out the...

Ok i will try to reword my question. Why does Moseley's law applicable only on z>10. What property changes after z=10.

Helium has k-alpha of 24.5 eV whereas if we derive it using Moseley's law, then it is supposed to be 10.2 eV Also I then looked into many sources and found that Moseley's graph talks about elements having z>=10 only Later I found in few sources that the assumption that "one electron shields...

I don't find this explanation correct. It doesn't explain reflection. Please correct me if i am wrong.