The transition from the state $n = 4$ to $n = 3$ in a hydrogen-like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition

  • A

    $2 \to 1$

  • B

    $3 \to 2$

  • C

    $4 \to 2$

  • D

    $5 \to 4$

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