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insens350 [35]
3 years ago
9

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

Chemistry
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

λ = 0.416×10³ nm

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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