Light cannot be linearly polarized by: transmission reflection diffraction diffraction

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

a.   mass number from atomic number