If the distribution of molecular speeds of a gas is as per the figure shown below,then the ratio of the most probable,the average and the root mean square speeds,respectively,is

  • A
    $1: 1: 1$
  • B
    $1: 1: 1.224$
  • C
    $1: 1.128: 1.224$
  • D
    $1: 1.128: 1$

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