Select the incorrect option.

  • A
    $1 \ Calorie = 4.18 \ Joules$
  • B
    $1 \ \mathring{A} = 10^{-10} \ m$
  • C
    $1 \ MeV = 1.6 \times 10^{-13} \ Joules$
  • D
    $1 \ Newton = 10^{-5} \ Dynes$

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Which of the following is not a unit of time?

$1 \text{ kilowatt hour} = \dots \text{ joules}$

Select the correct option for one light-year.

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