JIPMER2004ChemistryStructure of Atom
A golf-ball weigh 40.0 g . If it is moving with a velocity of 20.0 ~ms ⁻¹ , it's de-Broglie wavelength is
Options
- A1.66 10⁻³⁴ ~nm
- B8.28 10⁻³² ~nm
- C8.28 10⁻²⁵ ~nm
- D1.66 10⁻²⁴ ~nm
Correct answer
C. 8.28 10⁻²⁵ ~nm
Step-by-step solution
From de-Broglie equation, = h m v aligned & = 6.626 10⁻³⁴ j . s 40 10⁻³ ~kg 20.0 ~ms ⁻¹ & =8.28 10⁻³⁴ ~m aligned aligned & =8.28 10⁻³⁴ 10^9 ~nm & =8.28 10⁻²⁵ ~nm aligned