Recent content by sg001

that they are in phase... so x=mλ

ok so use 2nt = mλ

Homework Statement 6. S1 and S2 in the diagram are effective point sources of radiation, excited by the same oscillator. They are coherent and in phase with each other. Placed 4.0 y m apart, they emit equal amounts of power in the form of 1.0 m wavelength electromagnetic waves. (a) Find...

Thanks, sorry it should have been single slit with width 2a... but when I plug in d=a I can't see how that could disappear?

Homework Statement Laser light of wavelength λ is incident onto a pair of narrow slits of width a and spacing dWrite down an expression for the intensity as a function of angle of the angle measured from the central axis, θ, in the far-*‐fieldHomework Equations The Attempt at a Solution I...

cool thanks

no, that's the sltn and the exact question they give,,, so how would you approach this type of question then.. rewrite b as a liner combination of the given eigenvalues... then how do you solve for A from here... 2/3[2,1] -1/3[1,-1] = b just so I know if it comes up in my test...

hmm they have the answer of Ab = 1/3[11,1] ? is this correct?

Homework Statement A matrix A has eigenvectors [2,1] [1,-1] and eigenvalues 2 , -3 respectively. Determine Ab for the vector b = [1,1]. Homework Equations The Attempt at a Solution First I put be as a combination of the two eigenvectors ie 2/3[2,1] -1/3[1,-1] = b...

yes, so the image cointains the zero value... but I thought the image was the set of all function values except 0, I thought that was the kernal or is it that the kernal is a proper subset of the image?

still the zero vector

but does the image include zero values?

Homework Statement let a be the vector [2,3,1] in R3 and let T:R3-->R3 be the map given by T(x) =(ax)a State with reasons, the rank and nullity of THomework Equations The Attempt at a Solution Im having trouble understanding this... I know how to do this with a matrix ie row reduce and no. of...

But since I have declared MAX 10 then wouldn't small=[MAX] be really small=[10] , the 10th element? but how is this looking anyway #include <stdio.h> #define MAX 10 int main(int argc, char * argv[]){ int i,small=num[10]; int num[MAX]; printf("Enter up to %d integers:\n",MAX)...

Ok I want to somehow define small as the largest integer in the array. Can I do it like this small=[MAX] ... I'm new to using arrays they seem a little hard to understand;;; but how do I actually 'pick' and use a certain value from an array... so if I had the array{1,3,5,6,2,9}...