Which part of the telescope reflects light to the eyepiece?

Mirror at the side and bottom of the tube

Explanation:

It is the mirror that reflects light into the eyepiece of the telescope. The reflector telescope basically have a mirror at the bottom that is capable enough to reflect the light back to the tube where the eyepiece is located. Not only this, there is also a second mirror at the side of the tube that also reflects light into the eyepiece.

c) up is the direction the magnetic force is acting on the charge.