Single Choice

The de Broglie wavelength of a particle of mass 1 gram and velocity $$100\ { ms }^{ -1 }$$ is:

A$$6.63\times { 10 }^{ -35 }$$
B$$6.63\times { 10 }^{ -34 }$$
C$$6.63\times { 10 }^{ -33 }$$
Correct Answer
D$$6.63\times { 10 }^{ -32 }$$

Solution

Mass of particle, $$m= 1\ gram = 10^{-3}\ Kg$$ Velocity, $$v=100 \, ms^{-1}$$ De broglie wavelength $$\lambda =\dfrac{h}{mv}$$ $$=\dfrac{6.626\times 10^{-34}}{1\times 10^{-3}\times 100}$$ $$=6.626\times 10^{-33}\ m$$ Hence, option C is correct.

SIMILAR QUESTIONS

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