1. A particle mass 10x10-25 kg and charge+3x10-16 C is projected with a velocity of5x106 m/s in the +x-direction into a uniform magneticfield of 2.0T in the -z direction. Whic of the following iscorrect?
a.) The particle will follow counterclockwise circular path ofradius 0.833 mm
b.) none of the choices
c.) The particle will follow clockwise circular path of radius0.833 mm
d.) The particle will follow an upward path (+y direction) ofradius 8.33 mm
e.) The particle will follow an downward path (+y direction) ofradius 8.33 mm
2. Which of the following is NOT true for principal rays passingthrough a converging lens?
a.) Incident rays passing through the optical center of the lensdoes not deviate from its original path.
b.) Incident rays from an object at infinity and parallel to theprincipal axis are refracted to the focus on the same side of thelens.
c.) All of the choices are true.
d.) Incident rays passing through the focus before the lens arerefracted parallel to the principal axis.
e.) Incident rays parallel to the principal axis are refractedto the focus on the other side of the lens.
