Two colours of light which mix to make white light are called
a) primary colours
b) secondry colous
c) complementary colours
d) dye

An electron moving at 5.06 103 m/s in a 1.23 t magnetic field experiences a magnetic force of 1.40 10-16 n. what angle does the velocity of the electron make with the magnetic field? there are two answers between 0° and 180°. (enter your answers from smallest to largest.)