Qstnid -C-1- Calculate The Frequency Of Yellow Light Of Wavelength 550nm. The Speed Of Light Is 3 × 10<sup>8</sup> M/s<sup>-1</sup> - 06: Spectrum Of Light - Icse-x-physics

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ICSE-X-Physics

06: Spectrum of Light

with Solutions - page 3

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#1
Calculate the frequency of yellow light of wavelength 550nm. The speed of light is 3 ×
10⁸
m/s^-1
Ans : 1 Given, wavelength λ = 550 nm = 550
× 10^-9 m
Speed of light, c = 3
× 10⁸ m/s
We know that,
Frequency = Speed of light/wave length
Or, frequency = (3 × 10⁸)/(550 × 10^-9)
= 5.4
× 10¹⁴ HZ