Neutrons are electrically neutral and unaffected by electric fields

Steps:

• Identify neutron charge: zero elementary charges.
• Identify proton charge: +1 elementary charge.
• Compute relative charge: neutron charge divided by proton charge equals 0.
• Apply electric field effect: neutral particles experience no force (F = qE, q=0) and show no deflection.

Why B is correct:

• Neutrons have zero charge relative to a proton, so F = qE = 0, causing no deflection per Coulomb's law.

Why the others are wrong:

• A: Zero relative charge means no deflection, not deflection.
• C: Relative charge is 0, not 1; deflection requires charge.
• D: Relative charge is 0, not 1.

Final answer: B