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Q.

Give the ratio of kinetic energy of electron in two orbitals is 16:9. Calculate the ratio of wavelength of electron waves? 

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a

4:3

b

9:16

c

3:4

d

16:9

answer is C.

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Detailed Solution

From de-broglie’s equation  λ=hmv=h2m×KE
For an electron  λ×1KE⇒λ16λ9=916=3:4

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Give the ratio of kinetic energy of electron in two orbitals is 16:9. Calculate the ratio of wavelength of electron waves?