Physics Mcqs

Beta particles ionize an atom_________________?
  • (A)  Due to the electrostatic force of attraction
  • (B)  Due to the electrostatic force of repulsion
  • (C)  Due to a direct collision
  • (D)  Due to the gravitational force
Random errors can be reduced by_______________?
  • (A)  Taking zero correction
  • (B)  Comparing the instrument with another more accurate one
  • (C)  Taking mean of several measurements
  • (D)  All methods explained in A, B and C