Question

An atom absorbs 2ev energy and is excited to nextenrgy

Answer 1

Answer:

Explanation:riyain

Answer 2

Answer:

Here, an atom absorbs 2eV energy and is excited to next energy state, hence

ΔE=2eV=2×1.6×10

−19

J

Also,

ΔE=

λ

hc

λ=

ΔE

hc

λ=

2×1.6×10

−19

(6.6×10

−34

)(3×10

8

)

λ=

3.2×10

−19

(19.8×10

−26

)

λ=6.1875×10

−7

λ=6187.5A

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