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KVPY2017ChemistryStructure of Atom

C ₆₀ emerging from a source at a speed (v) has a de Broglie wavelength of 11.0 Å . The value of v ( inm s ⁻¹ . ) is closest to [Planck's constant .h=6.626 10⁻³⁴ ~J ~s ]

Options

  1. A0.5
  2. B2.5
  3. C5.0
  4. D30

Correct answer

A. 0.5

Step-by-step solution

= h mv v = h m = 6.62 10⁻³⁴ 720 10⁻³ 11 10⁻¹⁰

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