Relation of Bandwidth with the frequency

[neeraj kaira]

I know they are directly proportional but how? could anyone explain it graphically ?
thanks in advance

 

[mfb]

Bandwidth and frequency of what, where?

I know they are directly proportional but how?

In general, this is wrong.

 

[neeraj kaira]

Sir how the bandwidth variates with increase or decrease in frequency?

 

[mfb]

How does speed vary with the color of a car?
The question does not make sense without more context.