Recent content by kay

When I was solving questions on Ray optics I encountered a question wherein I had to prove that when a ray of light undergoes minimum deviation through a triangular prism then both the angles[SIZE=16px] of refraction that is the first one at the incident point and the second one at the emergent...

Because technically, the numerator is smaller than the denominator as −2<−1 I know it's an extremely stupid question. I mean I know that I can just multiply −1 to the numerator and the denominator and I'll get 2/1 which is greater than one. But what exactly is happening here? A number that...

I got it. Thanks a lot for your help. :)

Actually my question was, that why can't an inverse exist for a function whose range is not necessarily equal to but is rather a subset of the codomain.

In other words, why does a function have to be onto (or surjective, i.e. Range=Codomain) for its inverse to exist?

I don't think so...

What I studied was that the force on one charge due to another equal charge in the system of two charges was, (say) F; whereas the force on the other charge due to the first charge was found out to be -F. Hence they add up to be zero. So can I say that the two equal charges are in electrostatic...

Thank you. :)

Thank you. :D

By properties I mean the +I or -I effect as compared to other functional groups along with whether it induces a +R or -R effect?

What I mean to say is that why are some substituent groups such that(during resonance) the pi electrons' delocalisation is directed away from it while some groups are such that delocalisation of pi electrons is towards those groups? Can you kindly give some examples too?

So I can always assume that whenever a resonance structure has a pentavalent carbon, it doesn't exist?

And what about CH3NO2?

And what are the conditions for resonance to take place?

Yes. If that eqn is Ax + By + C = 0 then the distance from origin is |C|/√(A^2 + B^2)!