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Chemistry

Answered

When an electron falls from n = 5 ton = 2, the wavelength has been determined to be 434 nm.
What is the associated frequency?

A 6.91 x 10-14 Hz
B 6.91 x 10-5 Hz
C 6.91 x 105 Hz
D 6.91 x 10¹4 Hz

Answer :

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