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What is the wavelength of a light of frequency 7.21 % 1014 Hz?

What is the wavelength of a light of frequency 7.21 % 1014 Hz?-example-1

1 Answer

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Answer:

λ = 0.416×10³ nm

Step-by-step explanation:

Given data:

Frequency of light = 7.21×10¹⁴ Hz

Wavelength of light = ?

Solution:

speed of light = wavelength × frequency

c = speed of wave = 3×10⁸ m/s

by putting values

3×10⁸ m/s = λ× 7.21×10¹⁴ Hz

λ = 3×10⁸ m/s / 7.21×10¹⁴ Hz

λ = 0.416 ×10⁻⁶ m

λ = 0.416×10⁻⁶ ×10⁹ nm

λ = 0.416×10³ nm

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