14. Given that the wavelengths of visible light range from 400 nm to 700 nm, what is the highest frequency of visible light? (c = 3.0 × 108 m/s)
(A) 3.1 × 108 Hz
(B) 5.0 × 108 Hz
(C) 4.3 × 1014 Hz
(D) 7.5 × 1014 Hz
(E) 2.3 × 1020 Hz

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統計: A(3), B(1), C(1), D(58), E(1) #2356590

詳解 (共 2 筆)

#4154611
 求最高f ; 直接帶波長最短的400n...
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#4744426
highest frequency=lowest wavelength 
f=3x10^8/(400x10^-9)=7.5x10^14hz
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