Recent content by sinus

ohh, thanks Haborix, I used the wrong unit for c with m/s^2, but please, I'm stuck again :(((

well, it could be.. cause the website give unclear unit that should be use

Because I think the speed of light is a constanta. But I give it a try to include m/s^2, but still, it doesn't solve the problem. In here: [1] and [2], both the frequency is in MHz unit Source: [1] Source: [2] I calculate to check both the right and left side, it turns out that they just...

In telecommunication system there's a fresnel zone, it's an area between transmitter and receiver (i'm sure all the experts in this forum already knew about that). So, in this website (Fresnel Zone Calculator - everything RF) provide a Fresnel Zone Calculator, it also tells the equation, which...

I'm studying optics in this semester and one of the topic is polarization of light. Please help me. For ease of understanding we only consider the electric field E, right? I'm confused, if light passes through a polarizer then there will only be one field whose direction of vibration is only...

Oh yeaah, I forgot to consider the velocity. Thank you so much :)

Thank you so much for your explanation sir, it really helpful for me :)

Thank you for your reply sir, I finally understand the method of images. Sorry for long tome didn't respond. For your feedback,number 2: the method that I meant is the method of images, like why using that solutions method (thank god, now I know the reason) For number 1, I don't follow. So for a...

Thank you so much for your explanations:)

Thank you so much for your explanation, I finally understand. I'm sorry for my question that make you confused and sorry for long time I didn't reponse. It's because my mind that make it look like it complicated when it wasn't :)

I'm watching a video about " What is a black body?". That video said when the light interacts with the surface of a body, the electron and proton start oscillating. The electrons gain more transferred energy from the light that became its kinetic energy, rather than the proton because its mass...

how it can be zero, while the plane have charge? If we look to the formula that: V=k(q/r), at any point as long as the point is right on the plane then r =0, how "k and q" divides zero become zero?

Thanks a lot, but I still a little bit confused, why then the plane that have positive charge has zero electric potential? If we take a case of point charge in space at coordinat position x,y; does that mean electric potential exactly at that x,y is zero? Where the charge is, the potential right...

Can anyone explain to me why grounded means zero electric potential. I confuse what's the relation between infinite ground conducting plane and its electric potential (the method of images). I have a several question: 1. Why the conductor plane must be infinite, while in reality there's no...

Can anyone explain to me why grounded means zero electric potential. I confuse what's the relation between infinite ground conducting plane and its electric potential (the method of images). I have a several question: 1. Why the conductor plane must be infinite, while in reality there's no...