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The de-Broglie wavelength of a neutron when its kinetic energy is K is λ. What will be its wavelength when its kinetic energy is 4 K ?
  • a)
    4 λ
  • b)
    2 λ
  • c)
    λ/2
  • d)
    λ/4
Correct answer is option 'C'. Can you explain this answer?
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The de-Broglie wavelength of a neutron when its kinetic energy is K is...
De-broglie wavelength( lambda L)= h/ sqrt. (2mK). ,so lambda L is inversely proportional to sqrt.K, taking ratio
L2 /L1 =sqrt. (K/4K). so, we get L2= L1/2
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The de-Broglie wavelength of a neutron when its kinetic energy is K is λ. What will be its wavelength when its kinetic energy is 4 K ?a)4 λb)2 λc)λ/2d)λ/4Correct answer is option 'C'. Can you explain this answer?
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