A. 3.0 x 1014 Hz
B. 6.0 x 1014 Hz
C. 6.0 x 1012 Hz
D. 2.5 x 1014 Hz

Correct Answer:

Option B – 6.0 x 1014 Hz

Explanation

f = c/λ
∴ f = c/λ = 3 x 108λ / 500 x 109

=6.0 x 1014 Hz

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