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Angeleschelse
Angeleschelse Angeleschelse
  • 01-07-2016
  • Physics
Answered

A 1.0 kg object moving at 4.5 m/s has a wavelength of:

A1.5 × 10-34 m

B2.9 × 10-33 m

C7.4 × 10-35 m

D1.4 × 10-34 m

E2.9 × 10-34 m

Verified Answer :

olemakpadu
olemakpadu olemakpadu
  • 02-07-2016

By wave particle  duality.

Wavelength , λ = h / mv

where h = Planck's constant = 6.63 10⁻³⁴ Js,  m = mass in kg,  v = velocity in m/s.
m = 1kg,  v = 4.5 m/s

λ = h / mv

λ = (6.63 10⁻³⁴) /(14.5)

λ ≈  1.473 10⁻³⁴  m

Option D.

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