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  3. Chemistry
  4. A body of mass x kg is moving with a velocity of 100 ms-1. Its de Broglie wavelength is 6.62 × 10-35m. Hence x is (h = 6.62 ×10-34 Js)

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Q. A body of mass $x\, kg$ is moving with a velocity of $100 \, ms^{-1}$. Its de Broglie wavelength is $6.62 \times 10^{-35}m$. Hence x is ($h = 6.62 \times10^{-34}$ Js)

KCETKCET 2009Structure of Atom

Solution:

$ \lambda =\frac{h}{m v} $

$=\frac{6.62 \times 10^{-34}}{6.62 \times 10^{-35} \times 100} $

$=0.1\, kg$