It can be shown that the radial distance of a light ray travelling along the z axiz of an optical fiber is described by the following equiation. d2r/dz2=(1/nr)*(dn/dr)
for the case where the index of refraction n=n0(1-ar2) and ar2,,1 find a solution of the differential equiation for r(z).

When does your body conduct current more readily?

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.