1. Tardigrade
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  3. Chemistry
  4. Light travels with a speed of 3 × 108 m / sec. The distance travelled by light in 1 Femto sec is:

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Q. Light travels with a speed of $3 \times 10^{8} m / sec$. The distance travelled by light in 1 Femto sec is:

Some Basic Concepts of Chemistry

Solution:

$ d =s \times t$

$=\left(3 \times 10^{8} m / s \right)\left(10^{-15} s \right)$

$=3 \times 10^{-7} m$

$=3 \times 10^{-4}\, mm$

$ =0.0003 \,mm$