Recent content by simplescience

Any good books or sites that can help me understand these phenomenons in a step by step manner? I think my textbook is not well planned.

What is meant by putting an object on the axis? Does it mean that the principal axis bisect an object?

Thanks now I know what to look for next.

Is my diagram, actually showing "spherical aberration" in effect?

Does this mean that... 1. My diagram is correct. 2. The rays will truly converge in the case of ellipse concave mirrors only. 3. In case of spherical mirrors, not all the rays will converge, but maximum will converge at one point. Parallel rays, rays passing though curvature, rays passing...

Does this mean that... 1. My diagram is correct. 2. The rays will truly converge in the case of ellipse concave mirrors only. 3. In case of spherical mirrors, not all the rays will converge, but maximum will converge at one point. Parallel rays, rays passing though curvature, rays passing...

I have drawn a diagram of the incident and reflected rays of an object by the concave mirror. Red color shows the incident rays, black color shows the normals drawn from the center of curvature, while green color shows the reflected rays. Shouldn't all the reflected rays meet at one point. Any...

Then the only possibilities are... 1. Ripping away of an electron from molecule of one surface, thus turning that molecule into a positive ion. The lost electron becomes part of the molecule of the other surface and it becomes a negative ion. OR 2. Tearing away the Molecule of one surface...

Yes, have read it. But they are talking about exchange of electrons. But couldn't find out if those electrons are the 1. free electrons, OR 2. molecules on one surface snatches away the electrons from the molecules of other surface making the snatcher as anions and the looser as cations.Do...

While rubbing the plastic rod with the wool causes the building up of charges on both of them. 1. What chemical reaction takes place between them. 2. Does it create anions and cations? 3. Is it the transfer of free electrons (I don't think so, because generally they are bad conductor of...

Any guidance is welcome.

Can you please help me with this. https://www.physicsforums.com/showthread.php?t=768981

Homework Statement While rubbing the plastic rod with the wool causes the building up of charges on both of them. What chemical reaction takes place between them. Does it create anions and cations? Does it create free electrons (I don't think so, because generally they are bad...

Now, I have understood it very well. Correct me if I am wrong. The force of repulsion between balloon and the electrons is greater than the force of attraction between positive ions and the free electrons in the can. I deduce this from the fact that the creation of cations and free...

I have googled, but could not find explanation anywhere. Can you please elaborate? Thanks.