1 XH=j-wD 3. A hypothetical metal has a plasma
frequency 0 = 1015/s and a relaxation
time t = 10-13s. Find the real and
imaginary parts of the index of
refraction at o = Op. 0 = 20p, and o =
0,2​

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

more than, less

less than, more

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.