Mass of a proton is $1.6 \times 10^{-27}$ kg. Mass of $10^{6}$ protons is

Mass of a proton is $1.6 \times 10^{-27}$ kg. Mass of $10^{6}$ protons is
  1. $1.6 \times 10^{-21}$ kg
  2. $1.6 \times 10^{-33}$ kg
  3. $16 \times 10^{-21}$ kg
  4. $1.6 \times 10^{6}$ kg

Solution

$1.6 \times 10^{-27} \times 10^{6} = 1.6 \times 10^{-21}$ kg.

Asked in: NSO

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