Q164 / 225 · JEE Main 2003 · Physics

Which of the following radiations has the least wavelength?

  • Correct answer
    A
    $\gamma$-rays
  • B
    $\beta$-rays
  • C
    $\alpha$-rays
  • D
    X-rays

Solution

$\mathrm{R} \rightarrow$ Radio waves ; $\mathrm{M} \rightarrow$ Micro waves; $\quad \mathrm{I} \rightarrow$ Infra red rays; $\mathrm{V} \rightarrow$ Visible rays; $\mathrm{U} \rightarrow$ Ultraviolet rays; $\mathrm{X} \rightarrow \mathrm{X}$ rays; $\quad \mathrm{G} \rightarrow \gamma$ rays; $\quad \mathrm{C} \rightarrow$ Cosmic rays $\Rightarrow \gamma$ rays has least wavelength

Hence, the correct answer is option: 'A'.

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