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Question

The de-Broglie wavelength of a neutron at 27C is λ . What will be its wavelength at 927C


A

λ2

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B

λ3

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C

λ4

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D

λ9

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Solution

The correct option is A

λ2


λneutron1Tλ1λ2=T2T1
λλ2=(273+927)(273+27)=1200300=2λ2=λ2


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