The laser in an audio compact disc uses light of wavelength 7.8 \times 10^2 {\nm}. What is the frequency of light emitted by laser?

Correct Answer is : 3.8×1014 s−1

AP EAPCET 16th May 2023 Shift 2 Solved Paper

Section: Chemistry

Question : 122 of 160

Marks: +1, -0

The laser in an audio compact disc uses light of wavelength 7.8×102‌nm. What is the frequency of light emitted by laser?

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