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Q.

Energy difference between ground state and excited state of an atom is 6.6 x 10-34 J.The wave length of photon required to produce this transition is

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a

3 x 108 cm

b

3 x1010 m

c

3 x 10-8m

d

3 x 108 m

answer is C.

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Detailed Solution

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λ=hc∆E=6.6×10-34J-sec×3×108m sec-16.6×10-34J =3×108 m

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Energy difference between ground state and excited state of an atom is 6.6 x 10-34 J.The wave length of photon required to produce this transition is