Chemistry · JEE

Dual nature of matter, de Broglie's relationship, Heisenberg uncertainty principle MCQs for JEE

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Q1ChemistryUnit 2: Atomic Structure

Uncertainity in position of a particle of

25 \mathrm{g}

in space is

10^{-15} \mathrm{m} .

Determine uncertainity in velocity

\left(\mathrm{m} \mathrm{sec}^{-1}\right)

in it. (plank's constant,

\boldsymbol{h}=\mathbf{6 . 6} \times \mathbf{1 0}^{-\mathbf{3 4}} \mathbf{J s}

)

Q2ChemistryUnit 2: Atomic Structure

Assertion According to de Broglie, the wavelengths associtated with electrons and other subatomic particles can be detected experimentally. Reason The wavelength associated with any material particle is directly proportional to its mass.

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