A ball of mass 0.5kg is moving with velocity 6.626 m/s. What’s the wavelength of that ball?(a) 1 x 10^-34 m(b) 2 x 10^-34 m(c) 2 x 10^-32 m(d) 2 x 10^-3 mI got this question during an interview for a job.Question is taken from Towards Quantum Mechanical Model of the Atom in section Structure of Atom of Chemistry – Class 11

A ball of mass 0.5kg is moving with velocity 6.626 m/s. What’s the w

1.	A ball of mass 0.5kg is moving with velocity 6.626 m/s. What’s the wavelength of that ball?(a) 1 x 10^-34 m(b) 2 x 10^-34 m(c) 2 x 10^-32 m(d) 2 x 10^-3 mI got this question during an interview for a job.Question is taken from Towards Quantum Mechanical Model of the Atom in section Structure of Atom of Chemistry – Class 11
Answer» Correct option is (b) 2 x 10^-34 m The explanation is: Louis DE Brogie gave the realation between MOMENTUM and WAVELENGTH as λ = H/p. Here h is Planck’s constant, whose VALUE is 6.626 x 10^-34 J/s. Wavelength = h/mv = 2 x 10^-34 m (momentum p = mass m x velocity v).

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