Recent content by jairusgarcia

ok. I am an undergrad. I am interested in doping semicons. mathematical physics of semicons would also do. my adviser told me to focus on gallium arsenide. what then are good topics concerning doping gallium arsenide?

there is such a concept as diode biasing. forward bias means the positive end of the diode is connected to the positive end of the voltage/current source. in forward bias, current flows. while the reverse bias is the opposite. placing them depending on what bias you need is important.

can anyone suggest a topic on semiconductor physics that is great for a thesis study? thanks

anyone, please help. :(

Homework Statement The composite string consists of two strings having lengths of l1 and l2, and linear densities \rho1 and \rho2 Find y_{r} / y_{i} in terms of l1 and l2, and \rho1 and \rho2 Homework Equations y_{r} is the wave reflected from the "interface" of the two strings, and y_{i} is...

thanks for all the help!

ok thanks. last question. what is the physical explanation for the y-displacement? (sorry for this question. I am just confused)

ok. since there was a calculator there, i just inputted the values. back to the main question: the question asks the position. is the position in terms of what units? the angle and the y-displacement?

how? i mean, draw a triangle and input the measurements? when the problem says find the maximum, is that the central maximum where n=0?

oh... I am sorry. i feel noobish! haha!

R=\epsilon\sigmaT^{4} \epsilon --> emmisivity \sigma --> Steffan's constant T[ --> Temp (in Kelvin) should i start with steffan-boltzmann's equation (since its the nearest formula)? thanks... ^_^

The question goes like this, From the 2-slit interference experiment, determine the position of the 1st maximum if lambda=400nm, d=1mm and D=10cm. I've been reading through the experiment through external sites and none had given an example near the question. The question is, should i use...

Homework Statement A particle is in a cubic box with infinitely hard walls whose edges have length L. The wave functions of the particle are given by \psi(x)=Asin\frac{n\pi(x)}{L}Asin\frac{n\pi(y)}{L}Asin\frac{n\pi(z)}{L} a) Find the value of the normalization constant A. b) Find the...

ok. ^_^ got to rush, i need to pass this early this morning, and its already 2am here. hehe thanks for the help!

well, i still don't get it, but il try. thanks