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If $\lambda_v, \lambda_{ x }$ and $\lambda_{ m }$ represents wavelengths of visible lights, X-rays and microwaves respectively, then :

• A
  $\lambda_{ m }>\lambda_{ x }>\lambda_{ y }$
• ✓
  $\lambda_{ m }>\lambda_{ v }>\lambda_{ x }$
• C
  $\lambda_{ v }>\lambda_{ x }>\lambda_{ m }$
• D
  $\lambda_{ v }>\lambda_{ m }>\lambda_{ x }$