MCQ
Which source is associated with a line emission spectrum?
  • A
    Electric fire
  • B
    Neon street sign
  • C
    Red traffic light
  • D
    Sun

Answer

  1. Neon street sign

Explanation: 

Neon street sign gives a line emission spectrum.

When neon atoms gain enough energy to become excited, light is produced. Atom releases a photon when it returns to a lower energy state.

Therefore, the source associated with a line emission spectrum is the neon street sign.

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