An atom radiates 1.5 × 10-19J when an electron jumps from one level to another. What is the wavelength of the emitted radiation? (Planck’s constant 6.6 × l0-34Js ; Speed of light in vacuum = 3.0 × 108ms-1)
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A.
1.32 × 10-6m -
B.
2.97 × 10-6m -
C.
3.30 × 10-6m -
D.
6.82 × 10-6m -
E.
8.01 × 10m-6